Warning: session_start(): open(/opt/alt/php51/var/lib/php/session/sess_36ir2727d1u8sme4h9hs20hjh1, O_RDWR) failed: No such file or directory (2) in /home/vinacasc/public_html/bookstore/system/library/session.php on line 13Preparation of Spherical Polymeric Particles from Tanzania CNSL by Suspension Polymerization (2004)