Yunus Lutfiansyah, Dadang, Achmad Hufad, and Purnomo . “The Conceptual Model of Community Learning Center (PKBM) in Indonesia and Community Cultural Learning Center (Kominkan) in Japan”.
International Journal of Engineering and Technology 7, no. 3.30 (August 24, 2018): 246–250. Accessed April 28, 2025.
https://sciencepubco.com/index.php/IJET/article/view/18250.