Le (2013) cites Huynh (1987) who argues that the Vietnamese language has three mutually intelligible dialects, namely Southern, Central and Northern with distinctive phonetic differences. Although these dialects vary in tone and pronunciation, they do not prevent Vietnamese people from understanding each other in communication. Le (2013) argues that spoken Vietnamese has a long history, which is considered to have existed since the fourth century BC. According to Marr (1984), there are some hypotheses about its origin, include: the Austronesian linguistic group, the East-West Austroasiatic group of Mon-Khmer and the Sino-Tibetan language. Clark (1978) believes that Vietnamese spoken language originates
Le (2013) cites Huynh (1987) who argues that the Vietnamese language has three mutually intelligible dialects, namely Southern, Central and Northern with distinctive phonetic differences. Although these dialects vary in tone and pronunciation, they do not prevent Vietnamese people from understanding each other in communication. Le (2013) argues that spoken Vietnamese has a long history, which is considered to have existed since the fourth century BC. According to Marr (1984), there are some hypotheses about its origin, include: the Austronesian linguistic group, the East-West Austroasiatic group of Mon-Khmer and the Sino-Tibetan language. Clark (1978) believes that Vietnamese spoken language originates