No Inv.: 2588-2596/P/Perp/98/9c
No Inv.: 12398/P/Perp/98/1c
No Inv.: 4335/P/Perp/86/1c
No Inv.: 3422/P/99/1c
No Inv.: 3498-3582/P/99/2c
Judul asli : "ISO 14001 Ceritification : Environmental Management System"
No Inv.: 66223-66225/P/00/3c
No Inv.: 3976-3980/P/98/5c
No Inv.: 74179/S/00/1c