Peluang dan Tantangan Benda Virtual sebagai Objek Jaminan (Perbandingan antara Indonesia dan Amerika Serikat) = Opportunities and Challenges of Virtual Property as Collateral (Comparisan between Indonesia and United States)

Upaya Pengendalian Pencemaran Air pada Badan Air Permukaan di Indonesia melalui Sistem Perdagangan Alokasi Beban Pencemar Air = Water Pollution Control on Surface Water Bodies in Indonesia through Water Quality Trading System

Analisis Peluang dan Tantangan Penerapan Kebijakan Carbon Border Tax di Indonesia = Analysis of Opportunities and Challenges of Carbon Border Tax Policy Implementation in Indonesia

Analisis Peluang dan Tantangan Penerapan Kebijakan Carbon Border Tax di Indonesia = Analysis of Opportunities and Challenges of Carbon Border Tax Policy Implementation in Indonesia

The United States trade potential and challenges in the post financial crisis = Tantangan dan potensi dagang Amerika Serikat setelah krisis finansial