Akumu, Edwin Otieno. 2019. “Effects of Solvent Polarity on the Absorption and Fluorescence Spectra of 3-Cyano-7-Hydroxy-4-Methylcoumarin: Determination of the Dipole Moments.”. Kabarak Journal of Research & Innovation 8 (1), 65-71. http://ojs.kabarak.ac.ke/index.php/journal1/article/view/305.