Darma, I. K., Karma, I. G. M., Santiana, . I. M. A. and Sadiyani, N. W. (2023) “Effect Size Digital Mathematics Textbook in Blended Learning Assisted by Schoology Improves Mathematical Problem Solving Ability for Polytechnic Students”, SOSHUM : Jurnal Sosial dan Humaniora, 13(1), pp. 101–108. doi: 10.31940/soshum.v13i1.101-108.