International Labour Office , 2015
Majalah, Jurnal, Buletin
International Labour Office
ILO (International Labour Organization), 2007
Buku Teks
Jusuf Panglaykim, 1922-1986
Yayasan Proklamasi, Centre for Strategic and International Studies, 1977
Buku Teks
edited by Narongchai Akrasanee and Hans Christoph Rieger
Institute of Southeast Asian Studies, 1982
Buku Teks
Cambridge University Press, 2019
eBooks