“Synthesis and Characterization of 2, 4-Dihydroxy Substitted Chalcones using PEG-400 as a Recyclable Solvent” (2010) Global Journal of Science Frontier Research, 10(6), p. -. Available at: https://journalofscience.org/index.php/GJSFR/article/view/184 (Accessed: 6 August 2026).