Reduction procedures for calculating the determinant of the adjacency matrix of some graphs and the singularity of square planar grids. - Helen M. Rara (Discret. Math., 1996)

Folding Wheels and Fans. - Severino Villanueva Gervacio; Romulo C. Guerrero; Helen M. Rara (Graphs Comb., 2002)

Movable resolving domination in graphs. - Gerald B. Monsanto; Helen M. Rara (Discret. Math. Algorithms Appl., 2022)

On connected co-independent domination in the join, corona and lexicographic product of graphs. - Reyna Mae L. Detalla; Marlou T. Perocho; Helen M. Rara; Sergio R. Canoy (Discret. Math. Algorithms Appl., 2023)