892 E. Model Riset Persepsi Nilai Dan Keputusan Pembelian Produk Kopi Wanaal (Papua Coffee). eCo-Buss [Internet]. 2020 Feb. 24 [cited 2024 Nov. 22];2(2):30-6. Available from: https://jurnal.kdi.or.id/index.php/eb/article/view/127