Characteristics of Volcanic Rock In The Bualemo Area, North Gorontalo District Based On Petrographic AnalysisAang Panji Permana, Fandji Marfian, Noviar Akase and Muhammad KasimE3S Web Conf., 400 (2023) 01011DOI: https://doi.org/10.1051/e3sconf/202340001011