Bakruddin, Bakruddin, Faukas Rahmatillah, and Asbahrul Amri. 2021. “Preliminary Study of Mineral Sand in Samadua District, South Aceh ”. Jurnal Inotera 6 (1). Indonesia, Jakarta, 42-45. https://doi.org/10.31572/inotera.Vol6.Iss1.2021.ID132.