Graphing calculator manual por Penna, Judith A.

Student's solutions manual college algebra : Marvin L. Bittinger, David Ellenbogen, Barbara Johnson por Penna, Judith A.

College algebra. por Beecher, Judith A.

College algebra. por Beecher, Judith A.

Foundations of mathematics por Bittinger, Marvin L.

Algebra and trigonometry por Beecher, Judith A.

College algebra. por Beecher, Judith A.

Student's solutions manual [for] Algebra and trigonometry. por Penna, Judith A.

Intermediate algebra 6th edition instructors's solution manual por Penna, Judith A.

Student's solution manual elementary algebra : concepts and applications, third edition, Bittinger/Keedy por Penna, Judith A.