Zaid Zainal ABIDIN; Mohd. Salleh ABU. The Improvement of Geometric Thinking Levels of Secondary School Students Using Geometry Learning Video based on Van Hiele Theory. Modern Perspectives in Language, Literature and Education Vol. 9, [S. l.], p. 13–21, 2021. DOI: 10.9734/bpi/mplle/v9/3633F. Disponível em: https://stm.bookpi.org/MPLLE-V9/article/view/3593. Acesso em: 21 jul. 2026.