Hussien, Hadeel A.K, and Zainab A. K. Al-Messri. “Synthesis, Characterization and Evaluation of Some Meldrum’s Acid Derivatives As Lubricant Additives”. Iraqi Journal of Science 64, no. 3 (February 28, 2023): 1041–1048. Accessed December 21, 2025. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/5714.