Hasugian, Olvyanti, 		Tambunan, Marlina, 		Silitonga, Immanuel, 		Siregar, Junifer, AND 		Saragih, Vita.
" PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING. TERHADAP KETERAMPILAN MENULIS IKLAN PADA SISWA KELAS VIII" <em>JURNAL RECTUM: Tinjauan Yuridis Penanganan Tindak Pidana</em> [Online], Volume 4 Number 1 (7 January 2025)