Pakpahan, Imelda Febiola, and Ngajudin Nugroho. “Analisis Pengaruh Harga Dan Promosi Terhadap Volume Penjualan Pada PT. Metro Artha Prakarsa”. Prosiding Seminar Nasional Teknologi Komputer dan Sains 3, no. 1 (July 6, 2025): 74-80. Accessed August 27, 2026. https://www.sainteks.seminars.id/prosainteks/article/view/440.