A study result of Perdagangan Anak Perempuan untuk Tujuan Seksual (PAPUTS) or Girls Trafficking for Sexual Purpose: Sexual Abuse and Policy Idea, by Suyanto, S.A, funded by Ford Foundation and published by PSKK, UGM, (2002) that plays a role in the establishment of UU TPPO (UU No. 21/2007).