Retnowati N. TEACHERS’ PERSPECTIVES ON THE USE OF UNDERSTANDING BY DESIGN (UBD) IN SECONDARY SCHOOL LESSON PLANNING: PERSEPSI GURU TERHADAP PENERAPAN UNDERSTANDING BY DESIGN (UBD) DALAM RANCANGAN PEMBELAJARAN DI SEKOLAH MENENGAH. Educate [Internet]. 13 Januari 2025 [dikutip 5 November 2026];10(1):89-103. Tersedia pada: http://150.107.142.43/index.php/EDUCATE/article/view/18802