Cambridge : The American Academy of Arts and Sciences
Majalah, Jurnal, Buletin
Dickinson, G. Lowes
George Allen & Unwin, 1955
Buku Teks
University of Carolina
[place of publication not identified]: [publisher not identified], [date of publication not identified]
Buku Teks
University of Carolina
[place of publication not identified]: [publisher not identified], [date of publication not identified]
Buku Teks
edited by S.S. Hsueh and M.K. Tadjudin
Universitas Indonesia , 1976
Buku Teks