SYAHPUTRI, Mirna; 						HARAHAP, Darul Aman; 						RAHMI, Rahmi.
 PENGARUH PENGGUNAAAN METODE PROBLEM BASED INSTRUCTION TERHADAP HASIL BELAJAR SISWA PADA POKOK BAHASAN EKOSISTEM KELAS VII SMPN 1 BELAKANG PADANG BATAM.
<strong>SIMBIOSA</strong>, [S.l.], v. 4, n. 1, july 2015.
ISSN 2598-6007.
Tersedia pada: &lt;<a href="https://www.journal.unrika.ac.id/index.php/simbiosajournal/article/view/534" target="_new">https://www.journal.unrika.ac.id/index.php/simbiosajournal/article/view/534</a>&gt;. Tanggal Akses: 14 feb. 2026
doi: <a href="https://doi.org/10.33373/sim-bio.v4i1.534">https://doi.org/10.33373/sim-bio.v4i1.534</a>.