Syaputra, M.R., Suhendra, S. and Jupri, A. 2025. Design of teaching materials for word problem application of quadratic function based on Newman procedure. Research and Development in Education (RaDEn). 5, 2 (Dec. 2025), 1085–1098. DOI:https://doi.org/10.22219/raden.v5i2.41829.