WN Gultom, Rinawati, 		Sihite, Lusiana, 		Barasa, Sevri Sahtria, 		Gultom, Christania M, AND 		Siburian, Dina Octavia.
" STUDI PENDAHULUAN PENGEMBANGAN BAHAN AJAR BAHASA JERMAN BERTHEMA ”ESSEN UND TRINKEN” SMA KELAS 11" <em>Jurnal IKA PGSD (Ikatan Alumni PGSD) UNARS</em> [Online], Volume 16 Number 2 (31 December 2025)