TY  - BOOK
AU  - Valapa Piroonraksa Sangviriyakul, 1946-
TI  - A comparative study of selected elementary school mathematics textbooks used in the United States and in Thailand
SN  - Y910040287
PY  - 1978///
CY  - Ann Arbor, Mich.
PB  - University Microfilms International
KW  - Mathematics
KW  - Study and teaching (Elementary)
KW  - United States
KW  - Thailand
N1  - Thesis (Ph.D.) - University of Northern Colorado, 1978
ER  -