Zhang, Jingwei (2019년 6월 13일). “Tone mergers in Cantonese: Evidence from Hong Kong, Macao, and Zhuhai”. 《Asia-Pacific Language Variation》 5 (1): 28–49. doi:10.1075/aplv.18007.zha. S2CID197998897.
Zhang, Jingwei (2019년 6월 13일). “Tone mergers in Cantonese: Evidence from Hong Kong, Macao, and Zhuhai”. 《Asia-Pacific Language Variation》 5 (1): 28–49. doi:10.1075/aplv.18007.zha. S2CID197998897.