Nugraha, A.M. and Nurullaeli 2021. Pengaruh Elektromagnetik Exchange pada Charge-Radius Isotop Ca: Electromagnetic Exchange Effect in Charge-radii Ca-Isotopes . Jurnal Jejaring Matematika dan Sains. 3, 2 (Dec. 2021), 15–20. DOI:https://doi.org/10.36873/jjms.2021.v3.i2.601.