Studi pengembangan metode diffusive gradient in thin film dengan menggunakan binding gel campuran titanium dioksida chelex untuk pengukuran logam labil besi (II) dan fosfat secara simultan = Study of the development of diffusive gradient in thin film technique with titanium dioxide chelex mixed binding gel for simultaneous measurement of metal labile fe (II) and phosphate - Amalia Ekaputri Hidayat, author (2014)