Bibliografi : hlm. 549
No Inv.: 118948-118950/P/Perp/09/3c
No Inv.: 3411-3415/P/Perp/95/5c
Judul asli : "ISO 14001 Ceritification : Environmental Management System"
No Inv.: 114789/S/perp/08/1c
No Inv.: 114947-114954/SM/Perp/08/2c
No Inv.: 115142/S/Perp/08/1c
No Inv.: 115235/S/Perp/08/1c
No Inv.: 114592/S/Perp/08/1c