Leal, A.L.
Questions and answers law
Longman, 1978
 Buku Teks
Human rights: questions and answers
United Nations , 1987
 Buku Teks
Hollins, Carole
Questions and answers for dental nurses
Blackwell Munksgaard, 2006
 Buku Teks
Boyd, William E.
Questions and answers on insurance
Prentice-Hall, 1955
 Buku Teks
Chattopadhyay, P.
Boiler operation engineering : questions and answers
McGraw-Hill, 2001
 Buku Teks