Fajri HN, Johar R, Ikhsan M. Peningkatan kemampuan spasial dan self-efficacy siswa melalui model discovery learning berbasis multimedia. BetaJTM [Internet]. 2016 Dec. 30 [cited 2026 Apr. 20];9(2):180-96. Available from: https://jurnalbeta.ac.id/index.php/betaJTM/article/view/14