Legend of Ru Yi(1st Edition) by Liu Yunbo, Liu Lian Zi Paperback, 307 Pages, Published 2015 by The Chinese Overseas Publishing House ISBN-13: 978-7-5113-5485-3, ISBN: 7-5113-5485-8
China Kites Origin, Classification, Construction of Chinese Kites by Liu Zhen, Liu Chungen Hardcover, 131 Pages, Published 1994 by Shandong Science And Technology Press ISBN-13: 978-7-5331-1393-3, ISBN: 7-5331-1393-4