Business feasibility analysis using an economic engineering approach: A case study of Herota Homestay in Harau Valley von Dermawan, Ananda Putra, Hasibuan, Fadly Dzulfian, Putri, Cheryl Suciyanti, Arifin, Martin Marcelino, Khair, Irvan Miftahul, Laora, Sekartadji, Stefani, Nikita, Iskandar, Yelita Anggiane

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