A Scrum book the spirit of the game - Sutherland, Jeff 1941-; Coplien, James O.; Heasman, Lachlan; Hollander, Marck den; Oliveira Ramos, Cesário (The Pragmatic Bookshelf, 2019)
"Version: P1.0 (August 2019).". - Includes bibliographical references. - Online resource; title from title page (Safari, viewed September 2, 2020)