Nasution, Robby
Kementerian Komunikasi dan Informatika RI. Badan Penelitian dan Pengembangan Sumber Daya Manusia RI, 2016
Artikel Jurnal
Dixon, Chris J.
Routledge, 2015
Buku Teks SO
by Economic and Social Comission for Asia and the Pacific, United Nations
United Nations, 1983
Buku Teks
Hoggart, Keith
Routledge, 2016
Buku Teks SO
Asian and Pacific Development Administration Centre, 1980
Buku Teks