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THE DEVELOPMENT OF STUDENTS’ MATHEMATICAL LITERACY PROFICIENCY. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 77(4), Continuous. presented at the August/2019. doi:https://doi.org/10.33225/pec/19.77.502
(2019). THE DIFFICULTIES OF HIGH SCHOOL STUDENTS IN SOLVING HIGHER-ORDER THINKING SKILLS PROBLEMS. Problems of Education in the 21st Century, Problems of Education in the 21st Century, 76(4), Continuous. presented at the August/2018. doi:https://doi.org/10.33225/pec/18.76.520
(2018).