Improve students' speaking skill throught pictures
 Artikel Jurnal
Reading extensively to develop reading skill
 Artikel Jurnal
Isma Kania Muthmainah, author
Critical soft skill competence manajer proyek pada proyek infrastruktur yang berpengaruh terhadap kinerja biaya = Critical soft skill competence of project manager in infrastructure that affects cost performance
Fakultas Teknik Universitas Indonesia, 2014
 UI - Tesis (Membership)
Plattner, Francis B., author
Improve your communication and speaking skills
American Society for Training and Development Press, 1997
 eBooks
Gamble, Teri Kwal, author
Public speaking
Allyn and Bacon, 1994
 Buku Teks
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