Lase P, Harefa I, Mendrofa Y, Laia O. Analysis of The Use of Facebook Digital Promotion Media To Increase Sales of UD Tahu Murni Products in Gunungsitoli City. ECBIS [Internet]. 2025 Nov. 23 [cited 2025 Dec. 28];4(1):59-68. Available from: https://ecbis.net/index.php/go/article/view/236