Social skills : the study of real of skills vol. 4 / edited by W.T. Singleton
MTP Press , 1983
Buku Teks
Management skills : the study of real skills, vol. 3 / edited, W.T.Singleton
MTP Press , 1981
Buku Teks
Implementing practical skills in a distance learning of agribussiness study program at universitas terbuka
Artikel Jurnal
Tempest, P.J.
Initial skills in bricklaying: a practical guide
Pergamon Press, 1981
Buku Teks
Taylor, Judith Combes
Practical problem-solving skills in the workplace
[American Management Association, ], 1994
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