por International Conference On Health, Safety & Henvironment In Oil And Gas Exploration And Production (1991 : The Hague, Holanda) | Society of Petroleum Engineers (Estados Unidos).
por International Conference On Health, Safety & Environment In Oil & Gas Exploration & Production (2 : 1994 : Jakarta, Indonesia) | Society of Petroleum Engineers (Estados Unidos) [entidad patrocinadora] | Ikatan Ahli Teknik Perminyakan Indonesia [entidad patrocinadora] | Indonesian Petroleum Association [institución anfitriona].
por International Conference on Health, Safety & Environment in Oil & Gas Exploration & Production # (3 : 1996 : New Orleans) | Society of Petroleum Engineers (Estados Unidos).