Landlocked developing countries

Representative for the Least Developed Countries, Landlocked Developing Countries and the Small Island Developing State। UN-OHRLLS। ২০১৭। আগস্ট ২১, ২০১৭

W.; Sachs, J. D.; Snow, T. (২০০৪)। "The Challenges Facing Landlocked Developing Countries"। Journal of Human Development। 5 (1): 31–68 [pp. 31–32]।