Pengaruh Kualitas Layanan, Kualitas Produk, dan Brand Ambasador Terhadap Brand Image Kopi Janji Jiwa Jl. Basuki Rahmat Surabaya. point [Internet]. 2023 Jun. 29 [cited 2025 Oct. 9];5(1):81-96. Available from: https://ejournals.umma.ac.id/index.php/point/article/view/1665