JASMANI, Jasmani. PENGARUH PRODUCT DEVELOPMENT DAN PROMOTION MIX TERHADAP PENINGKATAN PENJUALAN YANG BERDAMPAK PADA KEUNGGULAN BERSAING. Jurnal Ekonomi Efektif, [S. l.], v. 1, n. 2, 2019. DOI: 10.32493/JEE.v1i2.3440. Disponível em: https://openjournal.unpam.ac.id/index.php/JEE/article/view/3440. Acesso em: 3 dec. 2024.