“Rancang Bangun Sistem Informasi Penjualan Barang Berbasis E-Commerce : (Studi Kasus: Pt. Sandya Lestari)”. Jurnal Penelitian Teknik, vol. 2, no. 2, Dec. 2025, pp. 103-8, https://journal.lp3ktk.com/index.php/jpt/article/view/141.