ARLIANTO, Jerry Agus; PRAYOGO, Dina Natalia; HRISTINA, Winda C. Pengembangan Model Optimasi Closed Loop Supply Chain Menggunakan Fuzzy Goal Programming. Journal of Logistics & Supply Chain Management, [S.l.], v. 3, n. 1, p. 34-46, feb. 2013. ISSN 1979-0686. Available at: <http://journal.ubaya.ac.id/index.php/JLSCM/article/view/258>. Date accessed: 19 nov. 2017.