Effects of e-learning on language learning. - Neda Mohammadi; Vahid Ghorbani; Farideh Hamidi (WCIT, 2011)

On the structure of spikes. - Vahid Ghorbani; Ghodratollah Azadi; Habib Azanchiler (AKCE Int. J. Graphs Comb., 2020)

On the structure of spikes II. - Vahid Ghorbani; Ghodratollah Azadi; Habib Azanchiler (AKCE Int. J. Graphs Comb., 2025)