皮希勒 & 李忠利. (2013). Scrum敏捷产品管理: Agile product management with scrum. 清华大学出版社.
Lua i Stíl Chicago (17ú heag.)皮希勒 agus 李忠利. Scrum敏捷产品管理: Agile Product Management with Scrum. 清华大学出版社, 2013.
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Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.