Smail, John R.W.
Ithaca Southeast Asia Program Departement of Asian studies Cornell University 1964
Buku Teks
Powelson, John P., author
McGraw-Hill , 1964
Buku Teks
Powelson, John P., author
McGraw-Hill , 1964
Buku Teks
Manglapus, Raul S., author
Solidaridad Publishing House, 1967
Buku Teks
Lee, Phil, author
Sage, 1980
Buku Teks