The officer of Education Research and Development Ministry of National Education,
Majalah, Jurnal, Buletin
editors, Louise Harpman and Evan M. Supcoff
MIT Press, 1999
Buku Teks
ISDCO, {s.a}
Majalah, Jurnal, Buletin
Graduate School Indonesia University of Education, 2014
Majalah, Jurnal, Buletin
Jefferson Law Book Company, 1993
Majalah, Jurnal, Buletin