by Ichimura, Shinichi $9.00
by Prijono Tjiptoherijanto, S.E, M.A, Ph.D $11.00
by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by Wimpie Pangkahila $9.00
by Prof. Dr. Suharsimi Arikunto $18.00
by Gazalba Saleh, S.H. M.H $9.00