Wong, S. L., Siew, N. M., & Soon, C. T. (2020). DEVELOPMENT OF A CHILDREN QUESTIONNAIRE FOR MEASURING CHINESE CHARACTER LITERACY LEARNING SATISFACTION. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 78(5), Continuous. presented at the October/2020. doi:https://doi.org/10.33225/pec/20.78.832

Jahudin, J., & Siew, N. M. (2023). AN ALGEBRAIC THINKING SKILL TEST IN PROBLEM-SOLVING FOR SEVENTH GRADERS . Problems of Education in the 21st Century, Problems of Education in the 21st Century, 81(2), Continuous. presented at the April/2023. doi:https://doi.org/10.33225/pec/23.81.223

Gül, Y. E., & Yeşil, R. (2024). THE DEVELOPMENT AND INITIAL TESTS FOR THE PSYCHOMETRIC PROPERTIES OF THE EQUAL OPPORTUNITY IN EDUCATION SCALE. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 82(3), Continuous. presented at the June/2024. doi:https://doi.org/10.33225/pec/24.82.353