Layth Jumaah Abed Al-Gburi. “Determination of Calcium in Talcum Powder by Complexometric Titration”. Annals of the Romanian Society for Cell Biology (May 31, 2021): 5671–5683. Accessed April 19, 2024. https://www.annalsofrscb.ro/index.php/journal/article/view/6655.