DE BARROS, D., M. SEMBENE BOYE, and L. DIOP. “HYDROGENOTUNGSTATO COMPLEXES WITH TIN HALOGENURES (IV): INFRARED AND MÖSSBAUER STUDIES”. Journal of Engineering Studies and Research, vol. 25, no. 4, Dec. 2019, pp. 7-11, doi:10.29081/jesr.v25i4.17.