Trade School, Henry Ford
McGraw-Hill, 1955
Buku Teks
1978
Buku Teks
Ford, Kathy
MacMillan Education, 1987
Buku Teks
Ford, Clelian S.
Yale University Press , 1949
Buku Teks
Eggan, Fred
Chicago Philippine Studies Program University of Chicago [t.th.]
Buku Teks