CHAN, Marites B. Public Secondary School Heads And Department Heads Planning Competence And Decision, Making Skills Of Selected Schools In The Third Congressional District Of Davao City: Basis For Management Plan. INTERNATIONAL JOURNAL OF ADVANCES IN SIGNAL AND IMAGE SCIENCES, [S. l.], p. 927–940, 2026. DOI: 10.29284/h5a13c67. Disponível em: https://xlescience.org/index.php/IJASIS/article/view/929. Acesso em: 23 oct. 2026.