Perbedaan pengaturan peningkatan nilai tambah menurut Undang-Undang Nomor 4 tahun 2009 tentang pertambangan mineral dan batubara dan dampaknya terhadap investasi pertambangan tembaga di Indonesia : studi kasus kontrak karya PT. Freeport Indonesia company = The difference regulations of increasing added value according to the Law No. 4 of 2009 and its impact to the copper investment in Indonesia : case study contract of work of PT. Freeport Indonesia Company

Tinjauan hukum terhadap Renegosiasi kontrak karya dalam kaitannya dengan ketentuan peralihan dalam Undang-Undang Nomor 4 Tahun 2009 tentang pertambangan mineral dan batubara (Studi kasus : Renegosiasi kontrak karya PT. Freeport Indonesia) = Legal assessment on contract of work renegotiation according to transitional provisions of Law No. 4 of 2009 about mineral and coal mining (Case study : Contract of work renegotiation of PT Freeport Indonesia)

Penyesuaian kontrak karya terhadap Undang-Undang Nomor 4 tahun 2009 tentang pertambangan mineral dan batubara melalui kegiatan renegosiasi kontrak = Adjustment of contract of works with Law Number 4 of 2009 concerning mineral and coal mining through contract renegotiation

Kajian renegosiasi kontrak karya pertambangan tembaga Indonesia-AS (studi kasus PT. Newmont Nusa Tenggara (PT. NNT dan Indonesia tahun (2014)) = Assessment work contract renegotiation copper mining Indonesia-US (case study PT. Newmont Nusa Tenggara (PT. NNT and Indonesia (2014))

Tinjauan yuridis terhadap penyelesaian sengketa pelaksanaan izin usaha pertambangan rakyat dan izin usaha pertambangan khusus berdasarkan undang-undang nomor 4 tahun 2009 tentang pertambangan mineral dan batubara = Legal analysis on the settlement of disputes of the implementation of mining business permit, small-scale mining permit and special mining business permit based on law number 4 of 2009 concerning minerals and coal mining