EFFORTS TO IMPROVE WRITTEN COMMUNICATION SKILLS AND STUDENTS’ SCIENTIFIC ATTITUDES BY USING THE DISCOVERY LEARNING LEARNING MODEL AT AL-HASAN MADANI ISLAMIC BOARDING SCHOOL RIAU. SPEKTRA: Jurnal Kajian Pendidikan Sains, [S. l.], v. 11, n. 2, p. 376–388, 2026. DOI: 10.32699/nf83a298. Disponível em: https://ojs.unsiq.ac.id/index.php/spektra/article/view/10325. Acesso em: 28 may. 2026.