Sudarto S. STRATEGI MARKETING MIX DENGAN KONSEP 4P (PRICE, PRODUCT, PLACE, PROMOTION) DI PT.OXYPLAST INDONESIA. SISTEM [Internet]. 27Apr.2023 [cited 25Jun.2025];19(1):37 -44. Available from: https://sistem.wisnuwardhana.ac.id/index.php/sistem/article/view/246