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The author of this book says if you understand a principle or theory of swing of golf, you can hit a golf ball with straight, regardless of your age or sex or athletic ability. Author of this book has a doctorate of athletics. And he is a teaching professional who has completed a new theory of golf in University of Tsukuba. Over 3,000 people of golf player learn from this theory. Actually, no less than 1,000 people have become a golfer with a single-figure handicap.
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