@article{Hidayat2014,
author = {Hidayat, R. and Sumarno, H. and Nugrahani, H.},
title= {Survival analysis in modeling the birth interval of the first child in Indonesia},
year = {2014},
doi = {10.4236/ojs.2014.43019},
volume = {4},
pages = {198‒206},
}