APA Style

Sarwanto, ., al, E. (1991). Penelitian penyusunan instrumen penilaian penampilan kerja Posyandu . Surabaya: Puslitbang Yantekkes, Badan Litbangkes.

MLA Style

Sarwanto, ., al, Et. "Penelitian penyusunan instrumen penilaian penampilan kerja Posyandu". Surabaya: Puslitbang Yantekkes, Badan Litbangkes, 1991. print.