Amin, Fatkhul, and Edy Nurraharjo. “OPTIMASI WEBSITE PENJUALAN BUKU MENGGUNAKAN METODE SEARCH ENGINE OPTIMIZATION (SEO) ON PAGE DAN SEO OFF PAGE”. Proceeding SENDI_U (July 24, 2019): 301-311. Accessed November 21, 2024. https://www.unisbank.ac.id/ojs/index.php/sendi_u/article/view/7392.