Basas, R. B. Effects of mathematics homework on the mathematics achievement of grade four pupils.
Chicago-viite (17. p.)Basas, Rosemarie B. Effects of Mathematics Homework on the Mathematics Achievement of Grade Four Pupils. Quezon City, 1980.
MLA-viite (9. p.)Basas, Rosemarie B. Effects of Mathematics Homework on the Mathematics Achievement of Grade Four Pupils.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.