Bilangan kumulatif koleksi mengikut jenis bahan di Perpustakaan Negara Malaysia, 2007-2011  [article]. 
 Cumulative collections by type of material at the National Library of Malaysia, 2007-2011 

 - Putrajaya :  Jabatan Perangkaan Malaysia,  2012 
<br/><br/> PTSL Dokumen (Page : 279), (Call Number : MK10 JPER 4 B335 2012)