Siregar, Muchtarudin. Management pengangutan / Muchtarudin Siregar. - Djakarta : Berdikari Students' Study Club Union, 1968. - iv, 143 p. ; 21 cm. Bibliography: p. 139-143. LCCN: sa 68008414 Subjects--Topical Terms: Transportation. LC Class. No.: HE151 / .S55