CHAU PING, Lam; SHAAFI, Nur Farha. Content Validity and Reliability Analysis of Instruments on Students’ Perceptions of Flipped STEM Learning. Sains Humanika, [S. l.], v. 18, n. 2, p. 69–79, 2026. DOI: 10.11113/sh.v18n2.2284. Disponível em: https://sainshumanika.utm.my/index.php/sainshumanika/article/view/2284. Acesso em: 10 may. 2026.