Maknun, Johar, M. S. Barliana, Diah Cahyani, Nanang Dalil H., and Asnul Dahar Minghat. “Evaluation of Vocational School (SMK) Students’ Environmental Literacy”. International Journal of Engineering & Technology 7, no. 4.33 (December 9, 2018): 178–181. Accessed May 5, 2024. https://sciencepubco.com/index.php/ijet/article/view/23554.