Deficiencies and vertex clique covering numbers of a family of trees. - Lou Caccetta; Purwanto (Australas. J Comb., 1990)

Deficiencies of r-regular k-edge-connected graphs. - Lou Caccetta; Purwanto (Australas. J Comb., 1991)

Deficiencies of connected regular triangle free graphs. - Lou Caccetta; Purwanto (Australas. J Comb., 1992)

Minimum Order of a Graph with Given Deficiency and Either Minimum or Maximum Degree. - Purwanto; W. D. Wallis (Ars Comb., 1998)

A dual hybrid forecasting model for support of decision making in healthcare management. - Purwanto; Chikkannan Eswaran; Rajasvaran Logeswaran (Adv. Eng. Softw., 2012)

An enhanced hybrid method for time series prediction using linear and neural network models. - Purwanto; Chikkannan Eswaran; Rajasvaran Logeswaran (Appl. Intell., 2012)

Prediction Models for Early Risk Detection of Cardiovascular Event. - Purwanto; Chikkannan Eswaran; Rajasvaran Logeswaran; Abdul Rashid Abdul Rahman (J. Medical Syst., 2012)

Enhanced hybrid prediction models for time series prediction. - Purwanto; Chikkannan Eswaran (Int. Arab J. Inf. Technol., 2018)

How Does Social Media Marketing Increase Brand Awareness: A Case Study of the Laboratory of YSU Office Administration. - Purwanto; Wahyu Rusdiyanto; Isti Kistiananingsih (ICBDT, 2019)

Enhanced Indonesian Ethnic Speaker Recognition using Data Augmentation Deep Neural Network. - Kristiawan Nugroho; Edi Noersasongko; Purwanto; Muljono; De Rosal Ignatius Moses Setiadi (J. King Saud Univ. Comput. Inf. Sci., 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)

Enhancing Spatial Thinking Awareness of World-Scale Geography with Excel Dynamic Map Charts and Virtual Globes. - Purwanto; Irene Mega Mellyana (Int. J. Interact. Mob. Technol., 2024)