APA
IPEKA Mathematics Club 2003, . (2003). The Harvard-Mit Mathematics Tournament 2003 Problem and solution. Jakarta: Sekolah Kristen IPEKA.
Chicago
IPEKA Mathematics Club 2003, . 2003. The Harvard-Mit Mathematics Tournament 2003 Problem and solution. Jakarta: Sekolah Kristen IPEKA.
Harvard
IPEKA Mathematics Club 2003, . (2003). The Harvard-Mit Mathematics Tournament 2003 Problem and solution. Jakarta: Sekolah Kristen IPEKA.
MLA
IPEKA Mathematics Club 2003, . The Harvard-Mit Mathematics Tournament 2003 Problem and solution. Jakarta: Sekolah Kristen IPEKA. 2003.