na INLIS000000000007626 20221119010415 0010-1118007626 221119 g 1 eng Vitamin A and protein status of preschool children in suka village, North Sumatra effer an oral massive dose of vitamin A : A nutritional and biochemical study / Humala Saur Radja Perlindungan Sinaga SINAGA, Humala Suar Radja Parlindungan Amsterdam : Universiteit van Amsterdam, 1981 iii, 106 p. : ill. ; 29 cm. 612.39 SIN v Thesis (Dr.)- Universiteit van Amsterdam, 1981 612.39 VITAMIN A PROTEIN PRESCHOOL CHILDREEN NUTRITIONAL NORTH SUMATRA 4086/84 4086/84