Purwoko, Bambang, Ahmad Gamal, and Dedy Kunhadi. “The Leather Industry Development in Tanggulangin in Facing Asean Economic Community (AEC) 2015 With Quantitative Strategic Planning Matrix (QSPM)”. Archives of Business Research 4, no. 6 (December 18, 2016). Accessed April 24, 2024. https://journals.scholarpublishing.org/index.php/ABR/article/view/2295.