On Thursday, November 17, 2022, PUI-PT Combinatorica and Graph had the opportunity to visit the Ganesha Education University (Undiksha) in Singaraja Bali. This visit aims to establish relationships and joint research between Prof. Drs. Dafik, M.Sc., Ph.D. and Prof. Dr. I Nengah Suparta, M.Sc. This visit is the theme of Focus Group Discussion which discusses coloring on graphs. Prof. Nengah opened the remarks and stated that Undiksha received wholeheartedly at Prof. Dafik and friends. Furthermore Prof. Nengah added that he wanted to establish collaboration by involving his students in a study with PUI-PT Combinatorica and Graph. The next remarks were delivered by Prof. Dafik who also introduced Dr. M. Venkatacalam and Dr. N. Mohanapriya. The event then continued with a discussion on "Topological Indices in Graph Theory" delivered by Mohanapriya. Furthermore, the discussion session was delivered by Venkatachalam which discussed "B-Chromatic Number on Graph Coloring".