PERSPEKTIF, Sri Yuliani. Prakata Perspektif, Vol VII, No. 13, April 2016. Perspektif Pendidikan dan Keguruan, Pekanbaru, Riau, Indonesia, v. 7, n. 13, 2017. Disponível em: https://journal.uir.ac.id/index.php/Perspektif/article/view/263. Acesso em: 2 may. 2024.