Sadeek, S., Refat, M., & Teleb, S. (2004). <b>Spectroscopic studies and thermal analysis of lead(II) and tin(II) solid complexes with bi- , tri- and tetradentate Schiff bases</b>. Bulletin of the Chemical Society of Ethiopia, 18(2). https://doi.org/10.4314/bcse.v18i2.61433