^Nordhoff, Sebastian; Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2013). "Min Zhong Chinese". Glottolog. Leipzig: Max Planck Institute for Evolutionary Anthropology.
Norman, Jerry (1974), "The initials of Proto-Min", Journal of Chinese Linguistics2 (1): 27–36, JSTOR23749809. (includes a description of the phonology of the Yong'an dialect)