No Inv.: 12160/P/Perp/98/1c
No Inv.: 435-437/P/Perp/98/3c
No Inv.: 9743-9747/P/Perp/97/5c~386/S/00/1c
No Inv.: 10614-10623/P/Perp/97/10c
No Inv.: 1359/Perp/79/1c~85859/Perp/73/1c~85803/Perp/73/1c
No Inv.: 6480/P/Perp/98/1c
No Inv.: 82-91/P/Perp/98/10c
No Inv.: 11134/P/Perp/98/1c~105114/S/Perp/06/1c
Judul asli : "Human Relationship Skill"