Manditong, J., J. Hassan, L. S. Laja, A. A. Laja, N. H. M. Mohammad, and S. U. Kamdon. “Connected Outer-Hop Independent Dominating Sets in Graphs Under Some Binary Operations”. European Journal of Pure and Applied Mathematics, vol. 16, no. 3, July 2023, pp. 1817-29, doi:10.29020/nybg.ejpam.v16i3.4766.