00621cam a22002411 4500 sa 68016709 DLC 20260227112656.0 721115s1967 xx 000 0 ind sa 68016709 (OCoLC)494402 DLC OAU DLC premarc Q180.A1 H28 1967 Hadi, Sutrisno. Methodologi research. Tjet. 8. Jogjakarta, Jajasan Penerbitan FIP-IKIP [1967] 400 p. 22 cm. Includes bibliographies. Research. Science Methodology. 87259 87259