Items by "Simbolon, Marta"
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Hajar, Ibnu and Simbolon, Marta and Handayani, Suri (2020) Community Empowerment through Karya Bersama Waste Bank Program in Desa Kolam Percut Sei Tuan Deli Serdang District. In: Proceedings of the 2nd International Conference of Science Education in Industrial Revolution 4.0, ICONSEIR, December 17th,2019, Medan, North Sumatra, Indonesia.