Winata, Vira Paradina, et al. “The Effect of Price, Product and Place on The Purchase Decision of Kopi Janji Jiwa Samarinda in Islamic Economic Perspective”. At-Taradhi: Jurnal Studi Ekonomi, vol. 14, no. 2, Feb. 2024, doi:10.18592/taradhi.v14i2.9450.