Singh, Indervir and Singh, Sarbjit (2007): Does sex-ratio indicate the extent of male preference?: A quest for better indicator. Unpublished.
Singh, Lakhwinder (2007): PUBLIC POLICY AND EXPENDITURE ON R&D IN INDUSTRY. Published in: ECONOMIC AND POLITICAL WEEKLY , Vol. 36, No. 31 (04. August 2001): pp. 2920-2924.
Singh, Lakhwinder (2008): Rural Finance and Farmers' Indebtedness: A Study of Two Punjabs. Unpublished.
Singh, Lakhwinder (2010): Post-reform economic development in Punjab: constraints and remedies. Unpublished.
Singh, Lakhwinder and Jain, Varinder (2009): Emerging pattern of India's outward foreign direct investment under influence of state policy: A macro view. Unpublished.
Singh, Lakhwinder and Jain, Varinder (2009): Emerging Pattern of India's Outward Foreign Direct Investment Under the Influence of State Policy: A Macro View. Unpublished.
Singh, Lakhwinder and Shergill, Baldev Singh (2009): Technological Capability, Employment Growth and Industrial Development: A Quantitative Anatomy of Indian Scenario. Unpublished.
Singh, Lakhwinder and Singh, Baldev (2009): National Innovation System in the Era of Liberalization: Implications for Science and Technology Policy for Developing Economies. Unpublished.