13 1 10 helen Baston Primary Author mixed material 9780429052750 New York Routledge 2021 Helen Ward Primary Author mixed material 9781846192340 US CRC PRESS 2021 helen varney Primary Author mixed material 0865420270 England Blackwell Scientific 1987 Jane C. Ollenburger Primary Author Helen A. Moore Additional Author mixed material 9795186523 jakarta Rineka Cipta 1996 Helen Farner Primary Author mixed material 9794484628 jakarta EGC 1999 helen brough Primary Author mixed material 97897944886 jakarta EGC 2007 Gangguan Medis Kehamilan dan Persalinan Linda Wylie Primary Author Helen Bryce Additional Author mixed material 97897904407 jakarta EGC 2010 helen varney Primary Author mixed material 9794485543 jakarta EGC 2001 helen varney Primary Author mixed material 9794488615 jakarta EGC 2007 helen varney Primary Author Ana Lusiyana Translator mixed material 9794488607 jakarta EGC 2006