Simatupang, Iwan,  1928-1970. <br/><br/>
Tegak lurus dengan langit :  lima belas cerita pendek / 
Iwan Simatupang. 
 - Jakarta :  Sinar Harapan,  1982. 
 - 115p. ;  19cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Short stories, Malay<br/>Malay fiction--Indonesian authors<br/>Indonesian fiction (Malay)