Intner, Sheila S.
Libraries Unlimited, 2001
Buku Teks
Ziarnik, Natalie Reif
American Library Association, 2003
eBooks
Norman, Sandy
Library Association Publishing, 1996
Buku Referensi
School Library Association , 1972
Buku Teks
Norman, Sandy
Library Association Publishing, 1996
Buku Referensi