Haddaw, A. K. . “Study the Changes of Bending Specification Strength at Adding Glass Powder to Iraqi Kaolin”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 54, no. 5, Dec. 2020, pp. 155-60, https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/11958.