found: Sung-yang hsien chih. Hsü pien, 1983?:t.p. (Sung-yang hsien) pref. (absorbed by Sui-chʻang hsien after Communist took over China)
found: Tzʻu hai, 1979:p. 2920 (Sung-yang hsien abolished in 1958, absorbed by Sui-chʻang hsien)
found: BGN, 5/8/84(Suichang [brief] Xian, ADM3, 28°36ʹN, 119°16ʹE; variant Sui-chʻang Hsien)
found: Chung-kuo hsien shih cheng chʻü tzu liao shou tsʻe, 1986:p. 70 (Sung-yang hsien was absorbed by Sui-chʻang hsien in 1958, then resumed its name again in 1982)
found: Sui-chʻang hsien chih, 1996:t.p. (Sui-chʻang hsien chih) p. 58 (in Chekiang Prov.; 28.13-28.49 N; 118.41-119.30 E)