Risani Rusnel, Azizah, Dinda Putri Karim, Rahmida Marlini, and Siska Maharani. “Determination of CaCO3 Content in Egg Shell”. Journal of Global Research Education 2, no. 2 (February 5, 2025): 63–69. Accessed November 1, 2025. https://journal.aaipadang.com/jgre/article/view/50.