“Synthesis, Characterization and Evaluation of Some Pyranopyrazole Derivatives As Multifunction Additives for Medium Lubricating Oils”. Iraqi Journal of Science 63, no. 7 (July 31, 2022): 2827–2838. Accessed November 21, 2024. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/5669.