PrecalculusMarvin L. Bittinger, Judith A. Beecher, David Ellenbogen, Judith Penna · First published 2015Open the Tome
Career Health InventoryCynthia Kivland, David Penna, Shawn Sargent · First published 2011Open the Tome
Tolerant Communication Skills HandbookCynthia Kivland, David Penna, Shawn Sargent · First published 2011Open the Tome
Workplace Engagement Values and Personal Best Zone Assessment and GuidesCynthia M Kivland, David Penna, Shawn Sargent · First published 2011Open the Tome
Algebra and trigonometryJudith A. Beecher, David Ellenbogen, Judith A. Penna · First published 2000 · Latest edition 2008Open the Tome
Annotated Instructor's EditionJudith A. Beecher, David Ellenbogen, Judith A. Penna, Marvin L. Bittinger · First published 2005Open the Tome
PrecalculusJudith A. Beecher, David Ellenbogen, Judith A. Penna · First published 2000 · Latest edition 2005Open the Tome
Algebra and trigonometryMarvin L. Bittinger, Judith A. Beecher, David Ellenbogen, Judith A. Penna · First published 2000Open the Tome
College AlgebraMarvin L. Bittinger, Judith A. Beecher, David Ellenbogen, Judith A. Penna · First published 2002Open the Tome
Algebra Trig Graphs Models UnitJudith A. Beecher, David Ellenbogen, Judith Penna · First published 2001Open the Tome
College AlgebraJudith A. Beecher, David Ellenbogen, Judith A. Penna · First published 1996 · Latest edition 2000Open the Tome
Student's solutions manualJudith A. Penna, Marvin L. Bittinger, David Ellenbogen, Barbara L. Johnson · First published 1998Open the Tome
Africa, human rights and the global systemGeorge W. Shepherd, David Penna · First published 1993Open the Tome
