Tehuayo E. Pengaruh Diferensiasi Produk, Inovasi Produk, dan Iklan terhadap Loyalitas Konsumen Shampo Sunsilk di Kota Ambon. JNMPSDM [Internet]. 2021Jun.19 [cited 2026Oct.9];2(2):69-88. Available from: https://www.journal.jis-institute.org/index.php/jnmpsdm/article/view/277