Suharli, Andrietta Crystabelle, and Isaura Elvareta. “Pengaruh Beban Pokok Penjualan Terhadap Laba Kotor Pada PT. Ultrajaya Periode 2017-2024”. RIGGS: Journal of Artificial Intelligence and Digital Business, vol. 5, no. 2, July 2026, pp. 23186-93, doi:10.31004/riggs.v5i2.12472.