1. E. Y Wijaya, D. A. Sudjimat and A. Nyoto, "Transformasi pendidikan abad 21 sebagai tuntutan pengembangan sumber daya manusia di era global," in Seminar Nasional Pendidikan Matematika, Prosiding Seminar Nasional Pendidikan Matematika 1, edited by T. Fayeldi et al. (Universitas Kanjuruhan Malang, Malang, Indonesia, 2016), pp. 263–278.
2. Analogical Transfer in Problem Solving
3. E. Retnowati and Marissa, "Designing worked examples for learning tangent lines to circles," in International Conference on Mathematics, Science, and Education, Journal of Physics: Conference Series 983, edited by Sutikno et al. (IOP Publishing, Bristol, United Kingdom, 2018), pp. 1–6.
4. D. S. Nahdi, J. Cakrawala Pendas. 5, 133–140 (2019).
5. S. K. Reed, Word Problems: Research and Curriculum Reform (Lawrence Erlbaum Associates, London, 1999), pp 99–148.