clarification and chemical-technical reassessment of the 1921 Oppau explosion disaster (PDF) (Report). NorwegianDefence Research Establishment(FFI). 2020年8月13日閲覧。
Bureau, Ministryof Justice)- 調查局 NICA(National Intelligence Coordinating Agency)- 国家情報調整局 ISAFP(Intelligence Service of the Armed Forces of the Philippines)-
Corporation of New Zealand (ECNZ) - part of which became privatized as Contact Energy in the period 1995 - 1998 Government Print Ministryof Works and Development