Librarians on the internet : impact on reference services
editor by Robin Kinder
The Haworth Press, 1994
 Buku Teks SO
Prytherch, Ray
Harrod's librarians' glossary and reference book
Gower, 1987
 Buku Referensi
Lailatur Rahmi
Perubahan paradigma pustakawan dalam perkembangan layanan referensi di Perpustakaan Universitas Indonesia = Paradigm shift of librarians on the development of reference services At The Library University
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2016
 UI - Tesis Membership
Harrod's librarians' glossary and reference book : seventh edition
compiled by Ray Prytherch
Gower, 1990
 Buku Referensi
Prytherch, Ray
Harrod's librarians glossary and reference book : ninth edition
Gower, 2000
 Buku Referensi