Avtor
Zhongguo ren min da xue. Shu bao zi liao she
3
ESB (International)
2
Russia (Federation). Ministerstvo obrazovanii︠a︡
2
Russia (Federation). Ministerstvo obshchego i professionalʹnogo obrazovanii︠a︡
2
Russian S.F.S.R. Ministerstvo narodnogo obrazovanii︠a︡
2
Russian S.F.S.R. Ministerstvo obrazovanii︠a︡
2
Russian S.F.S.R. Ministerstvo prosveshchenii︠a︡
2
Russian S.F.S.R. Narodnyĭ komissariat prosveshchenii︠a︡
2
Shiga Daigaku. Kyōiku Gakubu
2
Educational Resources Center (New Delhi, India)
1
English Speaking Board
1
Indian Society for Training & Development
1
Institut Agama Islam Negeri Jamiʼah ar-Raniry
1
Lietuvos Mokslų akademija
1
Mahāwitthayālai Thammasāt. Sathāban ʻĒchīatawanʻ̨ōksưksā
1
Matematikos ir informatikos institutas (Lithuania)
1
National Academy for Educational Management (Bangladesh)
1
Plovdivski universitet "Paisiĭ Khilendarski."
1
Singapore. National Productivity Board
1
University of Illinois at Urbana-Champaign. Department of Art and Design
1
University of Illinois at Urbana-Champaign. Office of Continuing Education and Public Service
1