1. Ahmed, R. & Akib, M. H. (2018). Evaluation of well performance of Titas gas field by decline curve analysis using type curves. Journal of Nature Science and Sustainable Technology, Volume 12, Number 2, Nova Science Publishers, Inc.
2. Al-Fattah S. M., & Startzman R.A. (1999). Analysis of worldwide natural gas production. Society of Petroleum Engineers, SPE 57463, SPE, Texas A&M University. Copyright 1999, Society of Petroleum Engineers Inc.
3. Asaduzzaman, M. and Kawsar, H. M. (Feb, 2015). Financial performance analysis of LP Gas Ltd. with special reference to Govt. restriction on New Piped Gas Connection to households. International Journal of Business and Technopreneurship and Development Studies, Volume 5, No. 1, pp. 49-60
4. Barati1, K. & Sepasgozar S. M. E. (2015). Factors affecting on productivity of oil and gas construction projects: An AHP analysis. American Journal of Civil Engineering and Architecture, Vol. 3, No. 1, pp. 21-27. Available online at http://pubs.sciepub.com/ajcea/3/1/4, Science and Education Publishing. DOI:10.12691/ajcea-3-1-4
5. Bello, U. & Sabo, H. A. (2018). The impact of lease capitalization on profitability of Nigerian oil and gas industry. Faculty of Humanities, Management and Social Sciences, Department of Accounting and Business Administration, Federal University, Kashere, Gombe State.