“Synthesis and Biological Activities of Some Substituted 6H-Dibenzo [B,D] Pyran-6-One and 6,6-Dimethyl 6H-Dibenzo [B,D] Pyran Derivatives” (2014) Global Journal of Science Frontier Research, 14(B4), pp. 13–24. Available at: https://journalofscience.org/index.php/GJSFR/article/view/1131 (Accessed: 21 January 2026).