“Cu(II), Zn(II), Cd(II) and Hg(II) Complexes of Pantroprazole (PPZH): Synthesis and Characterization”, Dhaka Univ. J. Sci., vol. 66, no. 2, pp. 151–156, Jul. 2018, doi: 10.3329/dujs.v66i2.54561.