Pencabutan Izin Pertambangan oleh Bupati Kutai Timur (Kasus Pencabutan Izin PT. Ridlatama Tambang Mineral) = Revocation Mining License by Kutai Timur Regent (Case Study Retraction License PT. Ridlatama Tambang Mineral).

Kebijakan Clean and Clear dalam menata izin usaha pertambangan mineral dan batubara = The Clean and Clear policy in managing the mining business license of mineral and coal

Analisis yuridis terhadap ketentuan-ketentuan dalam izin usaha pertambangan eksplorasi dan operasi produksi berdasarkan undang-undang nomor 4 Tahun 2009 tentang pertambangan mineral dan batubara (Studi kasus terhadap IUP eksplorasi timah PT. Bumi Palong dan IUP operasi produksi batubara PT. Mitra Tambang Barito) = Legal analysis on the terms and conditions of mining exploration license and exploitation based on the law No. 4 of 2009 regarding mineral and coal mining (Case studies of tin mining exploration license owned by PT. Bumi Palong and coal mining production operation license owned by PT. Mitra Tambang Barito)

Aspek hukum perlindungan investor terhadap wilayah izin usaha pertambangan ditinjau dari Undang-Undang nomor 4 tahun 2009 tentang Pertambangan Mineral dan Batubara : studi kasus PT. Aneka Tambang, Tbk dan PT Duta Inti Perkasa Mineral = The legal aspects of the protection of investors against the licences in terms of Act No. 4 of 2009 about mineral and coal mining : case study PT. Aneka Tambang, Tbk and PT. Duta Inti Perkasa Mineral

Tinjauan terhadap kebijakan clear and clean atas izin usaha pertambangan mineral dan batubara sebagai instrumen penaatan hukum lingkungan di Indonesia = Review for clear and clean policy on mineral and coal mining business license as instrument of environmental law compliance in Indonesia