Akpobor, O. . H. and Obumneke, U. (2007) “Colorimetric Analysis of Piroxicam”, Biological Sciences - PJSIR, 50(1), pp. 1–4. Available at: http://www.v2.pjsir.org/index.php/biological-sciences/article/view/719 (Accessed: 9 December 2025).