Sutikno S, Suhartini S. Price Strategies And Promotions Which E-Commerce Does In Sales. Primanomics : Jurnal Ekonomi & Bisnis [Internet]. 2020 Sep. 1 [cited 2024 May 4];18(3):113-24. Available from: https://jurnal.ubd.ac.id/index.php/PE/article/view/399