James Allen, Khalil Gibran, Napoleon Hill, Benjamin Franklin, Orison Swett Marden, Florence Scovel Shinn, Wallace D. Wattles & Russell H. Conwell
More by James Allen, Khalil Gibran, Napoleon Hill, Benjamin Franklin, Orison Swett Marden, Florence Scovel Shinn, Wallace D. Wattles & Russell H. Conwell