Sobri, K. M., F. Hanum, H. Zulnaidi, A. R. Ahmad, and A. -. “A Comparative Study of School Environment for students’ Skills Development in Malaysia and Indonesia”. Kasetsart Journal of Social Sciences, vol. 40, no. 1, Nov. 2017, pp. 149-54, https://so04.tci-thaijo.org/index.php/kjss/article/view/239829.