APA Style

Siagian, B, T. (1979). Study of Income and Attitude of Government Doctors . Jakarta: Puslitbang Ekologi Kesehatan, Badan Litbangkes.

MLA Style

Siagian, Berlian, T.P.. "Study of Income and Attitude of Government Doctors". Jakarta: Puslitbang Ekologi Kesehatan, Badan Litbangkes, 1979. print.