MohammedS. Z., MilalaM. A., and ImamS. A. “DETERMINATION OF VITAMIN A AND VITAMIN C IN CORCHORUS OLITORIUS (BUSH OKRA) USING HIGH PERFORMANCE LIQUID CHROMATOGRAPHY”. FUDMA JOURNAL OF SCIENCES, Vol. 3, no. 2, Apr. 2023, pp. 376 -84, https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1530.