Tambunan B, Pinem LJ. The Effect of Product Attributes on Purchasing Decision for Palm Oil Derivatives (Case study: Chocolate Appolo at Bina Swalayan Medan). Petrop [Internet]. 2020Oct.27 [cited 2024Nov.22];7(2):219-26. Available from: https://talenta.usu.ac.id/jpt/article/view/4663