The Feasible Textbook for Algebra Learning
Esti Harini, Irham Taufiq, Fitria Sulistyowati, Denik Agustito · 2019
The aim of this study has produced a textbook for algebra learning. This study was used Research and Development (R&D) method but restricted to textbook validity with steps: (1) exploration study; (2) initial product develop-ment; and (3) expert validity and product revision. The subject of this stu