Oktavia, O., A. Aprianif, H. . Kurniawati, M. S. . Marzuqi, T. Tatianningsih, and Z. M. . Arobiah. “Development and Validation of a Belonging-Supportive Deep Learning Environment Instrument for Evaluating Flipped Learning Environments in Higher Education”. International Journal of Business, Law, and Education, vol. 7, no. 2, July 2026, pp. 1185-94, doi:10.56442/ijble.v7i2.1406.