Aulia, I. M., Prayitno, S. ., Lu luilmaknun, U. ., & Sridana, N. . (2023). Analysis of students spatial ability in solving problems of flat side space subjects based on van hieles level of thinking . Jurnal Pijar Mipa, 18(1), 36–41. https://doi.org/10.29303/jpm.v18i1.3186