Pratiwi AP, Prihandono T, Prastowo SHB. Numerical Solution of Radioactive Core Decay Activity Rate of Actinium Series Using Matrix Algebra Method. jppipa, pendidikan ipa, fisika, biologi, kimia [Internet]. 2021 Jul. 7 [cited 2024 Nov. 22];7(3):395-400. Available from: https://jppipa.unram.ac.id/index.php/jppipa/article/view/716