Manurung, Melisa Patrisia, Maya Sentia Anjelika Tampubolon, Cornelia Aginta Br Sembiring, Nathania Christy Sembiring, Ian Josephan Saragih, Raymond Panuturi Siboro, Feryanto Nababan, and Nasrullah Hidayat. “Analisis Studi Kelayakan Usaha Warkop HH Ditinjau Dari Aspek Produksi, Pemasaran, Dan Keuangan”. RIGGS: Journal of Artificial Intelligence and Digital Business 4, no. 4 (December 4, 2025): 3158–3169. Accessed February 1, 2026. https://journal.ilmudata.co.id/index.php/RIGGS/article/view/3899.