Ferdian, F., Stefie, S. and Januardi, J. (2020) “The Effect of Product Quality, Personal Sales and Prices on CPO Purchasing Decisions at PT Kencana Persada Nusantara Medan: The Effect of Product Quality, Personal Sales and Prices on CPO Purchasing Decisions at PT Kencana Persada Nusantara Medan”, Jurnal Mantik, 3(4), pp. 112-119. Available at: https://www.ejournal.iocscience.org/index.php/mantik/article/view/523 (Accessed: 20September2026).