Harmaniar, Nursinta. “Pengaruh Gaya Hidup, Promosi Dan Demografi Terhadap Keputusan Membeli Smartphone Blackberry”. Tazkiya Journal of Psychology 4, no. 1 (March 1, 2019). Accessed July 16, 2026. https://journal.uinjkt.ac.id/index.php/tazkiya/article/view/10830.