*{{cite book|last=Bodden|first=Michael|chapter=Modern Drama, Politics, and the Postcolonial Aesthetics of Left-Nationalism in Sumatra: The Forgotten Theater of Indonesia's Lekra, 1955-1965|title=Cultures at War: The Cold War and Cultural Expression in Southeast Asia|editor1-last=Day|editor1-first=Tony|year=2010|publisher=Southeast Asia Program Publications|location=Ithaca, New York|series=Studies on Southeast Asia|isbn=978-0-8108-4935-8|ref=harv|url=http://books.google.ca/books?id=ZqEv0lYg2egC&pg=PA47&dq=Lekra&hl=en&ei=ZVRbTuiaJobjrAevktG9Cg&sa=X&oi=book_result&ct=result&resnum=2&ved=0CC4Q6AEwAQ#v=onepage&q=Lekra&f=false|accessdate=}}
*{{cite book|title=Historical Dictionary of Indonesia|last1=Cribb|first1=Robert|last2=Kahin|first2=Audrey|year=2004|publisher=Scarecrow Press|location=Lanham, Maryland|series=Historical dictionaries of Asia, Oceania, and the Middle East|isbn=978-0-8108-4935-8|ref=harv|url=http://books.google.ca/books?id=SawyrExg75cC&pg=PA242&dq=Lekra&hl=en&ei=ZVRbTuiaJobjrAevktG9Cg&sa=X&oi=book_result&ct=result&resnum=9&ved=0CFEQ6AEwCA#v=onepage&q=Lekra&f=false|accessdate=}}
* {{cite book|title=Leksikon Susastra Indonesia|trans_title=A Lexicon of Indonesian Literature|last1=Rampan|language=Indonesian|first1=Korrie Layun|year=2000|publisher=Balai Pustaka|location=Jakarta|isbn=978-979-666-358-3|url=http://books.google.ca/books?id=iCh2XorBXNgC&pg=PA257&dq=HB+Jassin&hl=en&ei=GS1aTseaHInxrQf76IybCw&sa=X&oi=book_result&ct=result&resnum=9&ved=0CFcQ6AEwCDgK#v=onepage&q=HB%20Jassin&f=false|ref=harv|accessdate=}}