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  - Mathematics Instruction
N1  - Includes bibliographical references and appendices
ER  -