NURVIANA, ITA. “IMPLEMENTASI MODEL PEMBELAJARAN PROBLEM BASED INSTRUCTION (PBI) DALAM KETERAMPILAN MENULIS KARANGAN NARASI PELAJARAN BAHASA JERMAN SISWA KELAS XII IPA SMAN 11 SURABAYA”. LATERNE 3, no. 2 (May 19, 2014). Accessed July 9, 2025. https://ejournal.unesa.ac.id/index.php/laterne/article/view/7970.