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Ach. Sholahur Robany 2023. Analisis Menentukan Harga Jual Produk Minuman Dan Snack Café Komunikopi Sampang Madura. Student Research Journal. 1, 2 (Jan. 2023), 78–90. DOI:https://doi.org/10.55606/sjryappi.v1i2.169.