Sugiyono
Stratifikasi sosial interferensi fonetis bahasa Sunda-Indonesia = The Social stratification od Sundanese-Indonesian phonetic interference
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 1996
 UI - Tesis Membership
Ashby, Michael F.
Introducing phonetic science
Cambridge University Press, 2010
 eBooks
Mol, Hendrik, 1919-1981
Fundamentals of phonetics II : Acoustical models generating the formants of the vowel phonemes
Mouton, 1970
 Buku Teks SO
Ladefoged, Peter
Phonetic data analysis : an introduction to fieldwork and instrumental techniques
Blackwell, 2003
 Buku Teks SO
Simatupang, Vanessa June Riauli
Interferensi Intonasi Ujaran Bahasa Jerman Akibat Pengaruh Intonasi Bahasa Indonesia pada Youtuber Indonesia = Interference of German Utterances Intonation due to the Influence of Indonesian Intonation on an Indonesian Youtuber
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2021
 UI - Tugas Akhir