Raden S. Nimpoeno
J.B. Wolters, 1936
Buku Klasik
Manila: Summer Inst. of Linguistics, 1955
Buku Teks
Johnson, Elmer D.
Scarecrow Press, 1955
Buku Teks
J. K. Moorhead, Charles Lee, editor
J.M. Dent and Sons , 1932
Buku Referensi
Hahn, Gap-Soo
Korean Oberseas Information Service, 1981
Buku Teks