S.M. NASMAN, OMAR. “Synthesis and Spectral Studies of 15 and 16-Membered Diamidediimine Tetraazamacrocyclic Metal Complexes”. Asian Journal of Chemistry 19, no. 2 (March 30, 2010): 1231–1238. Accessed July 5, 2024. https://asianpubs.org/index.php/ajchem/article/view/20215.