RETNO, LAURA. "Optimizing the Village Lumbung in Jatisari Mijen Subdistrict Semarang as a Social Movement for Covid-Affected Communities 19." Seminar Nasional Pengabdian Kepada Masyarakat UNDIP 2020 [Online], 1.1 (2020): n. pag. Web. 22 Nov. 2024