THE INFLUENCE OF MOTHER TONGUE USAGE ON THE LEARNING ACHIEVEMENT OF GRADE 3 STUDENTS AT CENTRAL BASIC EDUCATION 3rd CYCLE PÉROLA OF ATAÚRO. JES [Internet]. 2026 Jul. 10 [cited 2026 Jul. 10];1(1):1-7. Available from: https://jurnal.isc-tl.org/index.php/JES/article/view/2