Rosyihuddin, Muhammad, and Joni Hendra. “The Role of Price Discounts in Moderating, Customer Reviews and Free Shipping on Shopee Purchase Decisions in Surabaya”. JURNAL MANAJEMEN PENDIDIKAN DAN ILMU SOSIAL, vol. 4, no. 1, Jan. 2023, pp. 162-7, doi:10.38035/jmpis.v4i1.1415.