Yansen, L., Librina Tria Putri, dan Muhammad Salis. 2021. “THE EFFECT OF DIGITAL PROMOTION ON INCREASED SALES (Case Study At The Emyu Bookstore in Bangkinang City)”. Jurnal Riset Manajemen Indonesia 3 (2):187-95. https://doi.org/10.55768/jrmi.v3i2.79.