Patilpaik, P., and J. Meshram. “PHOTOCATALYTIC DEGRADATION OF PHENOL RED BY ZnO-Co (II) TETRAAMINOPHTHALOCYANINE UNDER NATURAL SOLAR RADIATION”. Journal of Advanced Scientific Research, Vol. 2021, no. ICITNAS, June 2021, pp. 235-9, https://sciensage.info/index.php/JASR/article/view/1565.