Mansoor Ahmed Qazi, Imdadullah Qureshi, Shahabuddin Memon, and M. Sharif, trans. “Evaluation of Complexation Behavior of Calix[4]arene Derivative”. Pakistan Journal of Analytical & Environmental Chemistry 11, no. 1 (June 1, 2010): 53–58. Accessed April 20, 2026. https://pjaec.pk/index.php/pjaec/article/view/429.