“The Role of Prices, Locations, and Promotions on Smartphone Purchase Decisions in Electronics Shop in Indonesia: a Lesson from Sidoarjo: Peran Harga, Lokasi, dan Promosi Terhadap Keputusan Pembelian Smartphone di Toko Elektronik di Indonesia: Pembelajaran dari Sidoarjo” (2019) Indonesian Journal of Law and Economics Review, 2(2), p. 10.21070/ijler.2019.V2.30. doi:10.21070/ijler.2019.V2.30.