Mammadova, S. 2022. Synthesis and Physico-Chemical Study of Supramolecular Compounds Sm and Gd (III) with Terephthalic Acid. Herald of Azerbaijan Engineering Academy. 14, 2 (Jun. 2022), 81–88. DOI:https://doi.org/10.52171/2076-0515_2022_14_02_81_88.