Hasibuan AM, Pulungan SA, Ramadhani R. Theoretical Model of Intelligence Integration to Improve Self-Directed Learning in Mathematics in the 21st Century. J.Math.Instr.Soc.Res.Opin. [Internet]. 2026 Mar. 31 [cited 2026 Nov. 15];5(1):1037–1048. Available from: https://journal-gehu.com/index.php/misro/article/view/1232