Rahmad Hudapi Purba, M. Isa Indrawan, Ramadhan. The Effect Of Competitive Advantage And Market Orientation On Marketing Performance in Chicken Business In Medan. BIoHS [Internet]. 2022Oct.12 [cited 2026Jun.13];4(3):477-89. Available from: https://www.biarjournal.com/index.php/biohs/article/view/768