Product Life Cycle (PLC) Dan Matriks Boston Consulting Group (BCG) (Studi Pada Usaha Kosmetik Julius Pasar Parluasan Pematangsiantar). MSEJ [Internet]. 2023 May 11 [cited 2026 May 21];4(3):2601-14. Available from: https://journal.yrpipku.com/index.php/msej/article/view/2078