“Absorbance Characteristics of Chlorophyll Extracts of Spinach (Amaranthus Hybridus & Amaranthus tricolor) and Water spinach (Ipomea spp.) as Sensitizers”, J. Phys. Soc. Ind. , vol. 1, no. 2, pp. 145–154, Oct. 2025, doi: 10.35895/jpsi.1.2.145-154.2025.