Md Taff, Md Amin, and Shamsor Nahar Mohd Yaakob. 2010. “Pendidikan Luar Di Malaysia: Outdoor Education in Malaysia”. Perspektif Jurnal Sains Sosial Dan Kemanusiaan 2 (2):61-73. https://ejournal.upsi.edu.my/index.php/PERS/article/view/1584.