Pakpahan, Normin S.
Elips, 1994
Buku Teks
GIZ-Supported Project Implementation of Competition Law (ICL)
Cicods FH-UGM, 2009
Buku Teks
Manulang, Sendjun H.
Rineka Cipta, 1987
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Zainal Asikin
Rajawali, 1995
Buku Teks
Christine S.T. Kansil
Pradnya Paramita, 1981
Buku Teks