Orientasi sufistik Cak Nur : komitmen moral seorang guru bangsa
America's private forests : status and stewardship
Aspek sosial amdal : sejarah, teori dan metode
Ilmu lingkungan
Conservation in the internet age : threats and opportunities
Ecosystem management in the United States : an assessment of current experience
Energy and the way we live : a courses by newspaper reader
Analisis mengenai dampak lingkungan
Audit lingkungan
Sirah Nabawiyah : sejarah lengkap Nabi Muhammad SAW