Bonin, C. (2021). Singing makes you happy: 10-minute workout for a beautiful voice. Self-Published.
Lua i Stíl Chicago (17ú heag.)Bonin, Christin. Singing Makes You Happy: 10-minute Workout for a Beautiful Voice. [Place of publication not identified]: Self-Published, 2021.
Lua MLA (9ú heag.)Bonin, Christin. Singing Makes You Happy: 10-minute Workout for a Beautiful Voice. Self-Published, 2021.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.