Khalid Hamad Abu-Shandia*, Engelbert Redelb. “Quantification and Stability Evaluation of the Highly Specific Angiotensin-Converting Enzyme (ACE) Inhibitor Captopril in Human Plasma Using a Gas Chromatographic Method With N,N,N’,N’-Tetramethyl-2-Butenediamide Derivatizing Agent”. Jordan Journal of Chemistry (JJC), vol. 4, no. 2, June 2009, pp. 183-94, https://jjc.yu.edu.jo/index.php/jjc/article/view/486.