www.stewartcalculus.com

Anchor text: Stewart Calculus

Wikipedia: James Stewart (mathematician)

Wikipedia: Mathematics education in the United States

Anchor text: Calculus

Wikipedia: Wikipedia:Reference desk/Archives/Mathematics/2010 November 23

Anchor text: this famous and popular book

Wikipedia: Wikipedia:Reference desk/Archives/Science/2021 November 13

Anchor text: the book I recommended earlier

Wikipedia: Wikipedia:Reference desk/Archives/Science/2021 November 13