Evidence for featural units in the acquisition of speech production skills: Linguistic structure in foreign accent. - Kenneth J. de Jong; Yen-Chen Hao; Hanyong Park (J. Phonetics, 2009)

Second language acquisition of Mandarin Chinese tones by tonal and non-tonal language speakers. - Yen-Chen Hao (J. Phonetics, 2012)

The effect of tonal context on second language learners' Mandarin tone production. - Yen-Chen Hao (ICPhS, 2015)

Comparing L1's effects on English coda obstruent perception: Mandarin and Korean identification performance. - Kenneth J. de Jong; Yen-Chen Hao (ICPhS, 2015)

Imitation of second language sounds in relation to L2 perception and production. - Yen-Chen Hao; Kenneth J. de Jong (J. Phonetics, 2016)

Featural generalization in second language identification Performance: Comparing learners with different L1s. - Kenneth de Jong 001; Yen-Chen Hao (J. Phonetics, 2018)

Contextual effect in second language perception and production of Mandarin tones. - Yen-Chen Hao (Speech Commun., 2018)

Mapping to perceptual identification in Mandarin learners of English. - Kenneth J. de Jong; Yu-Jung Lin; Yen-Chen Hao; Hanyong Park (J. Phonetics, 2025)