Coba jelasin Penghargaan dari Koesnadi Hardjasoemantri dong

Chevalier dans L'Ordre des Arts et des Lettres (Perancis)

Officer in de Orde van Oranje Nassau (Belanda)

Current development of laws in Indonesia (Tokyo: Institute of Developing Economies, Japan External Trade Organization, 1999)

Hukum perlindungan lingkungan: konservasi sumber daya alam hayati dan ekosistemnya (Yogyakarta: Gadjah Mada University Press, 1991)

Environmental legislation in Indonesia (Yogyakarta: Gadjah Mada University Press, 1985)

Peranan proyek PTM dalam pengembangan pendidikan: sebuah kasus peran serta mahasiswa Indonesia (Jakarta: Balai Pustaka, 1983)

Study-service as a subsystem in Indonesian higher education (Jakarta: Balai Pustaka, 1982)

The PTM project: a report on student-volunteers' recruitment for teaching purposes (Yogyakarta: Gadjah Mada University Press, 1979)