Dyfyniad APA

Lapeña, B. A. (1988). Mathematics achievement of grade six pupils in the public elementary schools of Bacnotan district: An appraisal.

Dyfyniad Arddull Chicago

Lapeña, Bona Ami. Mathematics Achievement of Grade Six Pupils in the Public Elementary Schools of Bacnotan District: An Appraisal. 1988.

Dyfyniad MLA

Lapeña, Bona Ami. Mathematics Achievement of Grade Six Pupils in the Public Elementary Schools of Bacnotan District: An Appraisal. 1988.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.