“Synthesis and Biological Activities of Some Substituted 6H-Dibenzo [B,D] Pyran-6-One and 6,6-Dimethyl 6H-Dibenzo [B,D] Pyran Derivatives”, GJSFR, vol. 14, no. B4, pp. 13–24, Mar. 2014, Accessed: Jan. 21, 2026. [Online]. Available: https://journalofscience.org/index.php/GJSFR/article/view/1131