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 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)

Status dan Hubungan Hukum Pegawai Non Pegawai Negeri Sipil (Non PNS) dan Non Pegawai Pemerintah dengan Perjanjian Kerja (Non PPPK) pada Pemerintah Provinsi DKI Jakarta = Status and Legal Relationship of Non-Civil Servant and Non-Government Employee with Work Agreement of Provincial Government DKI Jakarta.

Analisis perjanjian pengadaan barang/jasa pemerintah: studi putusan Mahkamah Agung nomor 1574 K/Pdt/2011 = Analysis to government procurement of goods and services agreement Indonesian supreme court decision number 574 K/Pdt/2011

Renegosiasi perjanjian karya pengusahaan pertambangan batubara = Renegotiation of coal contract of work