How pedagogical agents communicate with students: A two-phase systematic review. - Pieta Sikström; Chiara Valentini; Anu Sivunen; Tommi Kärkkäinen (Comput. Educ., 2022)

Pedagogical agents communicating and scaffolding students' learning: High school teachers' and students' perspectives. - Pieta Sikström; Chiara Valentini; Anu Sivunen; Tommi Kärkkäinen (Comput. Educ., 2024)