Pullum, Geoffrey K.
University of Chicago Press, 1986
Buku Teks
Ledefoged, Peter
Univeersity of Chicago Press, 1971
Buku Teks SO
Pike, Kenneth L. (Kenneth Lee), 1912-2000
Summer institute of linguistics, 1946
Buku Teks SO
Pleyte, C.M. (Cornelis Marinus), 1863-1917
G. Kolff & Co, 1911
Buku Teks
Egbert Heemen, 1875
Buku Teks