Shibata, Kei, author
Minerva Shobo, 1959
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Handogo, author
Universitas Indonesia, 2006
UI - Tesis (Membership)
Thiagarajan, Sivasailam, author
American Society for Training & Development, 2007
eBooks
2008
Artikel Jurnal
Naufal Farras Fajar, author
2019
UI - Skripsi (Membership)