Lapeña, B. A. (1988). Mathematics achievement of grade six pupils in the public elementary schools of Bacnotan district: An appraisal.
Chicago-Zitierstil (17. Ausg.)Lapeña, Bona Ami. Mathematics Achievement of Grade Six Pupils in the Public Elementary Schools of Bacnotan District: An Appraisal. 1988.
MLA-Zitierstil (9. Ausg.)Lapeña, Bona Ami. Mathematics Achievement of Grade Six Pupils in the Public Elementary Schools of Bacnotan District: An Appraisal. 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.