Majidah, A. P. and Marlena, L. (2021) “THE EFFECT OF ONLINE LEARNING AND DIRECT FACE-TO-FACE TO MATHEMATICS LEARNING ACHIEVEMENT”, Kalamatika: Jurnal Pendidikan Matematika, 6(2), pp. 157-170. doi: 10.22236/KALAMATIKA.vol6no2.2021pp157-170.