Militante, M.P., Eballe, R.G. and Leonida, R.E. 2022. Restrained Weakly Connected 2-Domination in the Join of Graphs. Communications in Mathematics and Applications. 13, 3 (Nov. 2022), 1087–1096. DOI:https://doi.org/10.26713/cma.v13i3.1939.