Hubungan inisiasi menyusu dini dengan tinggi Fundus Uteri ibu Postpartum hari ke-tujuh di wilayah kerja Puskesmas Kotabumi II Lampung Utara = A relationship between early initation of suckling and the high impact of fundus uteri at a postpartum women in seventh day region of Puskesmas Kotabumi II North Lampung - Martini, author (2012)