Lubis, Nurhasanah, and Rahmat Hidayat. “Pengaruh Promosi Dan Harga Terhadap Keputusan Konsumen Memilih Jasa Pengiriman”. MBR (Management and Business Review) 5, no. 1 (June 9, 2021): 29–39. Accessed December 5, 2024. http://ejournal.unikama.ac.id/index.php/mbr/article/view/5316.