Level up: The Best Kept Secrets to Overcoming Roadblocks, Achieving Success & Multiplying Results (en Inglés)
Robert Plank; Larry Dodd; Larry Becht; Drew Griffin; Lance Tamashiro; Syndee Hendricks; Tammy Wasinger; Jeanette Chasworth; Melinda Kelly; Colleen Rekers
Independently Published, 2020, Tapa Blanda, Nuevo