Volume & Issue: Volume 4, Issue 1, Winter and Spring 2019, Pages 1-77 
1. Strong Alliances in Graphs

Pages 1-13

C. Hegde; B. Sooryanarayana

2. New skew equienergetic oriented graphs

Pages 15-24

Xiangxiang Liu; Ligong Wang; Cunxiang Duan

5. The Roman domination and domatic numbers of a digraph

Pages 47-59

Zhihong Xie; Guoliang Hao; Shouliu Wei