Maksum, A., Safitri, D., Ibrahim, N., Marini, A. and Wahyudi, A. (2019) “Self-Efficacy Model for Elementary School Students: Case in Indonesia”, Opción, 35(88), pp. 851-865. Available at: https://produccioncientifica.luz.edu.ve/index.php/opcion/article/view/30983 (Accessed: 1November2025).