Asia pacific allergy
Departemen of Pediatric, Sungkyunkaw Univrsity School of Medicine,
 Majalah, Jurnal, Buletin
Middleton's allergy: principles and practice
edited by N. Franklin Adkinson, Jr., Bruce S. Bochner, A. Wesley Burks, William W. Busse, Stephen T. Holgate, Robert F. Lemanske, Jr., Robyn E. O'Hehir
Elsevier Saunders, 2014
 Buku Teks SO
Facts on Asean
Kementerian Luar Negeri Malaysia
Ministry of Foreign Affairs Malaysia, 1977
 Buku Teks SO
Facts on Canada
Ottawa Departemen of External Affairs 1963
 Buku Teks
Facts Tell
Pyongyang Foreign Languages Publishing House 1960
 Buku Teks