6Lal, Anil K. and Thomas C. Lowinger, Nominal effective exchange rate and trade balance adjustment in South Asia countries, Journal of Asian Economics, 2002, Vol. 13 (371 - 383).
7Bahmani - Oskooee, Mohsen and Taggert J. Brooks, Bilateral J - curve between US and her trading partners, Review of World Economics, 1999, Vol. 135.