Measuring Students Scientific Learning Perception and Critical Thinking Skill Using Paper-Based Testing: School and Gender Differences. - Rima Meilita Sari; Sumarmi Sumarmi; I Komang Astina; Dwiyono Hari Utomo; Ridhwan Ridhwan (Int. J. Emerg. Technol. Learn., 2019)

The Effect of Problem-Based Hybrid Learning (PBHL) Models on Spatial Thinking Ability and Geography Learning Outcomes. - Saiful Amin; Sumarmi Sumarmi; Syamsul Bachri; Singgih Susilo; Abdul Bashith (Int. J. Emerg. Technol. Learn., 2020)

Measuring Students Environmental Problem Solving Ability Across Gender and School Differences Using Paper Based Testing. - Ridhwan Ridhwan; Sumarmi Sumarmi; I Nyoman Ruja; Dwiyono Hari Utomo; Rima Meilita Sari (Int. J. Emerg. Technol. Learn., 2020)

Blended Learning Integrated Fieldwork on Fundamentals of Geology Learning During The Covid-19 Pandemic. - Dwi Angga Oktavianto; Sumarmi Sumarmi; Sugeng Utaya; Didik Trayana (Int. J. Emerg. Technol. Learn., 2021)

Effect of Mobile-Augmented Reality (MAR) in Digital Encyclopedia on The Complex Problem Solving and Attitudes of Undergraduate Student. - Alfyananda Kurnia Putra; Sumarmi Sumarmi; Alfi Sahrina; Azni Fajrilia; Muhammad Naufal Islam; Batchuluun Yembuu (Int. J. Emerg. Technol. Learn., 2021)

Increasing Students Critical Thinking Skills and Learning Motivation Using Inquiry Mind Map. - Rima Meilita Sari; Sumarmi Sumarmi; I Komang Astina; Dwiyono Hari Utomo; Ridhwan Ridhwan (Int. J. Emerg. Technol. Learn., 2021)

Project-Based Research Learning (PBRL) Integrated With E-Learning in Projects Completion. - Sumarmi Sumarmi; Syamsul Bachri; Listyo Yudha Irawan; Muhammad Aliman; Wan Ibrahim Wan Ahmad (Int. J. Emerg. Technol. Learn., 2021)

Development of E-Learning, Mobile Apps, Character Building, and Outdoor Study (EMCO Learning Model) to Improve Geography Outcomes in the 21st Century. - Hendri Prastiyono; Sugeng Utaya; Sumarmi Sumarmi; I Komang Astina; Saiful Amin; Muhammad Aliman (Int. J. Interact. Mob. Technol., 2021)

New Technologies for Project-Based Empathy Learning in Merdeka Belajar (Freedom to Learn): The Use of inaRISK Application and Biopore Technology. - Nur Isroatul Khusna; Sumarmi; Syamsul Bachri; I Komang Astina; Dwi Astuti Wahyu Nurhayati; Rajendra P. Shrestha (Int. J. Interact. Mob. Technol., 2022)

The Use of Smartphones in Geography Learning: A 21st Century Learning Innovation in Identifying Nature Appearances Based on Fieldwork. - Alfi Sahrina; Sumarmi; Purwanto; Fatiya Rosyida; Aziz Bin Shafie; Devi Prasetyono; Agung Suprianto; Muhammad Sainul Fadlan; Mohammad Ainul Labib (Int. J. Interact. Mob. Technol., 2022)

Development of Geomobile App-Based Outdoor Study to Improve Critical-Social Abilities and Collaborative in the 21st Century. - Hendri Prastiyono; Bambang Sigit Widodo; Sugeng Utaya; Sumarmi; I Komang Astina; Saiful Amin; Pedro T. Isaías (Int. J. Interact. Mob. Technol., 2023)

Spatial Acumen in the Digital Age: The Transformative Power of STEM-Enriched Mobile Textbooks in Geography. - Alfyananda Kurnia Putra; Sumarmi; Syamsul Bachri; Diky Al Khalidy; Imam Arifa'illah Syaiful Huda (Int. J. Interact. Mob. Technol., 2023)

Developing interactive virtual reality as a tech-based learning media to improve students' geoheritage comprehension. - Robby Hilmi Rachmadian; Alfyananda Kurnia Putra; Sumarmi Sumarmi; Heni Masruroh (Int. J. Learn. Technol., 2024)