Frisnoiry, Suci, Tricinta Yospin Wina Harianja, Sriantika Simanullang, and Widya Riatama Pandiangan. “Analisis Permintaan Dan Penawaran Barang Pokok Dan Non Pokok”. Nautical : Jurnal Ilmiah Multidisiplin Indonesia 1, no. 12 (March 25, 2023): 1536–1542. Accessed July 6, 2024. https://jurnal.arkainstitute.co.id/index.php/nautical/article/view/748.