O. R. Alara, N. H. Abdurahman, and J. A. Alara, “TWO LEVEL FACTORIAL SCREENING OF MICROWAVE-ASSISTED EXTRACTION PARAMETERS FOR THE RECOVERY OF PHENOLIC COMPOUNDS FROM VERNONIA CINEREA LEAF”, J. Chem. Eng. Ind. Biotechnol., vol. 5, no. 1, pp. 16–28, Mar. 2019, doi: 10.15282/jceib.v5i1.3887.