“Alat Pemeras Lendir (Depulper) dan Pengering Biji Kakao Berbasis Programmable Logic Controller (PLC)”. Jurnal ELEMENTER (Elektro dan Mesin Terapan), vol. 6, no. 2, November 2020, hlm. 19-31, https://doi.org/10.35143/elementer.v6i2.4431.