Shinta Retnowati M, Sukoco D, Fitiyani M. The Essence of Halal Ecosystem in Pesantren Business in Optimizing Toward Sustainable Economy. KSS [Internet]. 2024 Jul. 4 [cited 2025 Feb. 6];9(20):469–478. Available from: http://thrillriftranks.com/index.php/KnE-Social/article/view/16552