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]. 2025 Jan. 13 [cited 2025 Feb. 22];10(1):89-103. Available from: http://360665.5mvk4.group/index.php/EDUCATE/article/view/18802