- Cărți electroniceEasy Algebra Step-by-Step, Second EditionSandra Luna McCune
- Cărți electroniceEasy Mathematics Step-by-StepSandra Luna McCune
- Cărți electroniceMust Know High School TrigonometrySandra Luna McCune
- Cărți electroniceEasy Math Step-by-Step, Second EditionSandra Luna McCune
- Cărți electroniceEasy Algebra Step-by-Step, Third EditionSandra Luna McCune
- Cărți electroniceEasy Algebra Step-by-StepSandra Luna McCune
- Cărți electronicePractice Makes Perfect CalculusWilliam D. Clark
- Cărți electronicePractice Makes Perfect Linear Algebra (EBOOK)Sandra Luna McCune