Okoye, I. F., I. O. Alaekwe, and O. Abba. 2021. “UV-VIS SPECTROPHOTOMETER ANALYSIS OF FILM GROWN USING NATURAL DYE FROM LAWSONIA INERMIS (HENNA PLANT)”. Nigerian Journal of Physics 30 (2):135-39. https://njp.nipngr.org/index.php/njp/article/view/104.