“PROFIL PROGRAM CONTINUOUS PROFESSIONAL DEVELOPMENT (CPD) GURU BIOLOGI DI WILAYAH JAWA BARAT DALAM UPAYA MENINGKATKAN KUALITAS PROFESI: Profile of Continuous Professional Development Program of Biology Teachers in West Java in an Effort to Enhance Their Own Professional Quality” (2011) Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam, 16(1), pp. 155–163. doi:10.18269/jpmipa.v16i1.36006.