nuraini, nuraini, and mala vinuzia. 2023. “Utilization of Mangosteen Skin Into A Halal Drink and Thayyib As A Business Opportunity In The Form Of Health Coffee Powder”. RIGGS: Journal of Artificial Intelligence and Digital Business 2 (1):01-05. https://doi.org/10.31004/riggs.v2i1.17.