TY  - BOOK
AU  - Malate,Mark Francis L.
TI  - Development and validation of abacus-based worksheet for mathematics 7
U1  - 372.7 
PY  - 2025///
CY  - Iriga City
PB  - University of Saint Anthony
KW  - Abacus-based worksheet
KW  - Mathematics instruction
KW  - Curriculum validation
KW  - Soroban abacus
N1  - Includes bibliographical references
ER  -