Hering, Heike, author
Springer Nature, 2019
eBooks
Helling, Pam, author
[American Management Association, ], 1992
eBooks
Camp, Sue C., author
McGraw-Hill, 2001
Multimedia
Camp, Sue C., author
Glencoe/McGraw-Hill, 2001
Buku Teks
Vallins, G.H.
Andrew Deutsch, 1952
Buku Teks