Janwan, A., 		Lestary, A., & 		Simpol, W.
2021 Dec 24.  THE DEVELOPMENT OF KINDERGARTEN STUDENTS’ ATTITUDE  APPLYING FLIPPED CLASSROOM CONCEPT IN COVID-19 SITUATION. Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC). [Online] 1:2