Hackert, A. F. (1989). College algebra. Harcourt brace jovanovich.
Tohutoru Kātū Chicago (17th ed.)Hackert, Adelbert F. College Algebra. San diego: Harcourt brace jovanovich, 1989.
Tohutoro MLA (9th ed.)Hackert, Adelbert F. College Algebra. Harcourt brace jovanovich, 1989.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.