Salinas-Llumiquinga, K. A., & Valladares-Guaman, C. A. (2026). DISTRIBUTION CHANNEL MANAGEMENT AND TRANSPORTATION COSTS IN AN ASSOCIATION OF ESSENTIAL-PRODUCT VENDORS IN LOJA. Scientific Journal INGENIAR: Engineering, Technology and Research, 9(18), 300-314. Retrieved from https://journalingeniar.journalgestar.org/index.php/ingeniar/article/view/508