by Dr. Ir. Wisnu Cahyadi, M.Si $11.00
by $16.00
by Arief Sardiman, dkk $11.00
by Drs. Mulyono HAM, M.Pd $13.00
by Dr. Ibrahim Bafadal, M.Pd $9.00
by Bakhtiar, Numan Agus, Murisal $7.00
by Lembaga Kajian Hukum Bisnis FH USU Medan $6.00
by Prof. Dr. Moh. Mahfud MD, S.H., S.U. $9.00
by Chichi Sukarjo $6.00
by Shaleh Tamimi $5.00
by - $9.00
by Denny Indrayana $6.73