Ratnasari, I. et al. 2021. Pengaruh Paparan Medan Magnet Extremely Low Frequency (ELF) Terhadap Derajat Keasaman (pH) Susu Sapi Segar. Jurnal Pijar Mipa. 16, 2 (Mar. 2021), 276–281. DOI:https://doi.org/10.29303/jpm.v16i2.2478.