Hai shang si chou zhi lu yan jiu - Wu, Chuanjun; Lü, Yusheng (Ke xue chu ban she, 2006)
"Beihai Shi’Hepu–hai shang si chou zhi lu shi fa gang’li lun yan tao hui" yu 2004 nian 12 yue 27 zhi 30 ri zai Guangxi Beihai Shi Hepu shun li zhao kai."–Postscript.