Kusmiyati, Kusmiyati. “PENDEKATAN KONTEKSTUALDALAM PEMBELAJARAN IPA(BIOLOGI) DI SEKOLAH MENENGAH PERTAMA”. Jurnal Pijar Mipa 4, no. 1 (March 1, 2009). Accessed May 6, 2024. http://jurnalfkip.unram.ac.id/index.php/JPM/article/view/178.