Khairunnas, K., and R. Risfendra. “Sistem Kontrol Otomatis Sorting Machine Benda Logam Berbasis Programmable Logic Controller”. JTEIN: Jurnal Teknik Elektro Indonesia, Vol. 3, no. 2, Oct. 2022, pp. 476-8, doi:10.24036/jtein.v3i2.271.