R. Sihadi Darmo Wihardjo, Yuliani Nurani, Syahrul Ramadhan, Nasaruddin. “The Different Effect of Inquiry Learning Strategy on the Students’ Environmental Knowledge”. International Journal of Advanced Science and Technology 29, no. 05 (April 15, 2020): 699 - 704. Accessed July 24, 2024. http://sersc.org/journals/index.php/IJAST/article/view/9600.