ZAMSISWAYA ZAMSISWAYA; SYAWALUDIN SYAWALUDIN; NUNUNG WITONO; JUNI MAHANIS. Effective Strategies in Formulating Educational Objectives to Achieve the Vision and Mission of Institutions at the Madrasah Aliyah Level in the Riau Islands. Harmony Philosophy: International Journal of Islamic Religious Studies and Sharia, [S. l.], v. 2, n. 2, p. 12–18, 2025. DOI: 10.70062/harmonyphilosophy.v2i2.161. Disponível em: https://philosophy.ifrel.org/index.php/HarmonyPhilosophy/article/view/161. Acesso em: 2 mar. 2026.