Items where Author is "Efferin, Sujoko"
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Cholili, Azwar and Efferin, Sujoko (2020) Social Entrepreneurship and Economic Improvement in Selamat Pagi Indonesia High School. In: The 2nd International Conference on Business and Banking Innovations (ICOBBI) 2020, 14 - 15 Agustus 2020, STIE Perbanas Surabaya.