Muhandisuddin, Muhammad Noor. 2019. “Effect of Product Promotion, Quality Products, Consumer Satisfaction in Forming Consumer Loyality to Return Buying Safety Shoes Products CV. Berkah Karya Jaya”. Jurnal Justisia Ekonomika: Magister Hukum Ekonomi Syariah 3 (1). https://doi.org/10.30651/justeko.v3i1.2916.