Volume & Issue: Volume 6, Issue 1, Winter and Spring 2021, Pages 1-169 
4. A note on the first Zagreb index and coindex of graphs

Pages 41-51

10.22049/cco.2020.26809.1144

Igor Milovanovic; Marjan Matejic; Emina Milovanovic; Rana Khoeilar


8. A survey of the studies on Gallai and anti-Gallai graphs

Pages 93-112

10.22049/cco.2020.26877.1155

Agnes Poovathingal; Joseph Varghese Kureethara; Dinesan Deepthy