M. Huda and M. Kartanegara, “The Significance of Educative Environment to the Character Development: A Study of al-Zarnûjî’s Ta’lim Al-Muta’allim”, Int J Innov Educ Res, vol. 3, no. 3, pp. 191–200, Mar. 2015, doi: 10.31686/ijier.vol3.iss3.338.