Text ( visual ) : unmediated Preparing data for computer / by Jeanne Cairns Sinquefield. -- Jakarta : Lembaga Demografi Fakultas Ekonomi Universitas Indonesia , 1977. -- ii, 72 p. : ill. ; 28 cm. -- "LD FEUI/SM NO: 36/77" ; Summary: Manual of data computing preparation for researchers. -- (BB06563040) ; https://ci.nii.ac.jp/ncid/BB06563040 Author Heading(s): Sinquefield, Jeanne Cairns