Carlson, Rick
Issues & Trends in health
The Mosby , 1987
 Buku Teks SO
Trends and issues in East Asia 2001
Ng Chee Yuen, Charla Griffy-Brown
International Development Research Institute , 2001
 Buku Teks SO
Trends and issues in East Asia 1999
edited by Ng Chee Yuen, Charla Griffy-Brown
International Development Research Institute, 1999
 Buku Referensi
Cherry, Barbara
Contemporary nursing: issues, trends, and management
Elsevier , 2011
 Buku Teks SO
Second language development: trends and issues
edited by Sascha W. Felix
Gunter Narr Verlag, 1980
 Buku Teks SO