Gaya APA

Ringo, L, S., Butarbutar, S. (2020). Pediatric nursing skills . Jakarta: Akademi Perawatan RS PGI Cikini.

Gaya MLA

Ringo, Lince, Siringo., Butarbutar, Samsinar. "Pediatric nursing skills". Jakarta: Akademi Perawatan RS PGI Cikini, 2020. Electronic Resource.