Shahzad, U. Et Al. 2017. Estimation of population variance using quartiles in absence and presence of non-response. GAZI UNIVERSITY JOURNAL OF SCIENCE , vol.30, no.2 , 205-218.

Shahzad, U., Hanif, M., KOYUNCU, N., & Garcia Luengo, A. V., (2017). Estimation of population variance using quartiles in absence and presence of non-response. GAZI UNIVERSITY JOURNAL OF SCIENCE , vol.30, no.2, 205-218.

Shahzad, Usman Et Al. "Estimation of population variance using quartiles in absence and presence of non-response," GAZI UNIVERSITY JOURNAL OF SCIENCE , vol.30, no.2, 205-218, 2017

Shahzad, Usman Et Al. "Estimation of population variance using quartiles in absence and presence of non-response." GAZI UNIVERSITY JOURNAL OF SCIENCE , vol.30, no.2, pp.205-218, 2017

Shahzad, U. Et Al. (2017) . "Estimation of population variance using quartiles in absence and presence of non-response." GAZI UNIVERSITY JOURNAL OF SCIENCE , vol.30, no.2, pp.205-218.

@article{article, author={Usman Shahzad Et Al. }, title={Estimation of population variance using quartiles in absence and presence of non-response}, journal={GAZI UNIVERSITY JOURNAL OF SCIENCE}, year=2017, pages={205-218} }