Le, Minh, Thao Phan, and Tan Phan. “SINGLET OXYGEN AND QUANTUM YIELD OF ZINC TETRASULFOPHTHALOCYANINE IN DIMETHYLFORMAMIDE SOLVENT”. VNUHCM Journal of Science and Technology Development 12, no. 17 (November 15, 2009): 29-33. Accessed August 30, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/2364.