Parida, Maisah, and Minnah El Widdah. “Motivasi Dan Persepsi Kepala SMP Adiwiyata Di Kepulauan Riau”. Journal of Education and Culture 4, no. 3 (August 11, 2024): 21–32. Accessed July 1, 2025. https://ejournal.indrainstitute.id/index.php/jec/article/view/954.