Jegatheswaran และผู้แต่งคนอื่นๆ. 1990. Proximate determinants of fertility in Sri Lanka : an analysis of Bongaarts'modelSandrasekeram Jegatheswaran. Faculty of Graduate Studies, Mahidol University;
Jegatheswaran และผู้แต่งคนอื่นๆ. (1990) Proximate determinants of fertility in Sri Lanka : an analysis of Bongaarts'modelSandrasekeram Jegatheswaran . Mahidol University/Bangkok.
Jegatheswaran และผู้แต่งคนอื่นๆ. Proximate determinants of fertility in Sri Lanka : an analysis of Bongaarts'modelSandrasekeram Jegatheswaran. . Bangkok:Mahidol University, 1990.
Jegatheswaran และผู้แต่งคนอื่นๆ. (1990) Proximate determinants of fertility in Sri Lanka : an analysis of Bongaarts'modelSandrasekeram Jegatheswaran . Mahidol University/Bangkok.