Purwiyanto HaryadiYusriana,Yandra Arkeman, Sapta Raharja,. “ANALISIS TITIK-TITIK KRITIS KETERTELUSURAN PADA RANTAI PASOK KAKAO ACEH”. Jurnal Teknologi Industri Pertanian 26, no. 1 (September 2, 2016). Accessed April 20, 2024. https://journal.ipb.ac.id/index.php/jurnaltin/article/view/13118.