Wijayanti, R. and Anggia, M. 2020. ANALISIS KADAR KAFEIN, ANTIOKSIDAN DAN MUTU BUBUK KOPI BEBERAPA INDUSTRI KECIL MENENGAH (IKM) DI KABUPATEN TANAH DATAR [Analysis of Cafein, Antixidant and Quality Levels Coffee Powder of Some Medium Small Industries (IKM) In the Tanah Datar Regency]. Jurnal Teknologi & Industri Hasil Pertanian. 25, 1 (Jan. 2020), 1–6. DOI:https://doi.org/10.23960/jtihp.v25i1.1-6.