Entire Zagreb indices of graphs. - Anwar Alwardi; Akram Alqesmah; Raghavachar Rangarajan; Ismail Naci Cangül (Discret. Math. Algorithms Appl., 2018)

A note on global dominator coloring of graphs. - Raghavachar Rangarajan; David A. Kalarkop (Discret. Math. Algorithms Appl., 2022)

Global dominated coloring of graphs. - David A. Kalarkop; Ismail Sahul Hamid; Mustapha Chellali; Raghavachar Rangarajan (Discuss. Math. Graph Theory, 2024)

On graphs whose domination number is equal to chromatic and dominator chromatic numbers. - David A. Kalarkop; Pawaton Kaemawichanurat; Raghavachar Rangarajan (RAIRO Oper. Res., 2025)