Novaldi Yahya Arif Guntara. “Correlation of Igneous Rock Characteristics in Mount Mujil and Areas Based on the Petrological Approach of Volcanic Rocks”. ReTII (November 9, 2021): 425 - 432. Accessed April 25, 2024. //journal.itny.ac.id/index.php/ReTII/article/view/2629.