Asti, Asti, Kadori Haidar, Indah Permatasari, and Muhammad Arya Dwiki Ressa Adriani. 2026. “Pengaruh Marketing Mix 4P (Product, Price, Place, Dan Promotion) Terhadap Loyalitas Pelanggan Pada Usaha Kopijadi Di Kota Samarinda”. Indonesian Journal of Innovation Multidisipliner Research 4 (2):3983-92. https://doi.org/10.69693/ijim.v4i2.836.