PI Index of Armchair Polyhex Nanotubes. - Ali Reza Ashrafi; Amir Loghman (Ars Comb., 2006)

PI polynomials of product graphs. - Amir Loghman (Appl. Math. Lett., 2009)

On Vertex Matching Polynomial of Graphs. - Gholam Hossein Fath-Tabar; Amir Loghman (Ars Comb., 2012)

Cayley Graphs Isomorphic To The Product Of Two Cayley Graphs. - Alireza Abdollahi; Amir Loghman (Ars Comb., 2016)