Ernah (2011): Public perception of corruption. Project Report, funded by Komisi Pemberantasan Korupsi (Corruption Comission).

Djuwendah, Endah; Ernah and Zumi Saidah (2011): Multifunctional economic valuation of agricultural land values approach benefits of wetland in the area of Region Bandung and Jatinangor, West Java. Project Report, funded by DIPA Unpad.

Ernah; Rani, A. Kusuma and Agriani H. Sadeli (2011): Enterpreneurship training to improvement value added economic of commodity local to increase community income at Tanjung Siang and Buniara Village Subang, West Java, Indonesia. Project report, funded by DIPA UNPAD.

Fatimah, Sri; Dika S. and Ernah (2009): Entrepreneurship training of diversification agroindustri product of peanut base at Cidaun Village Cianjur, West Java, Indonesia. Project report, funded by DIPA UNPAD.

Ernah (2003): Demand analysis and economic benefit value of Marine Natural Recreation Park, Gili Matra, West Nusa Tenggara, Indonesia. Master Thesis.

Ernah (2000): Determination of Optimum Replacement of Plants Cacao (Theobroma cacao L.) Plantation Panglejar Section Rajamandala PTPN VIII Bandung, West Java, Indonesia.