Tambunan, Elisabet, and Mery Lani Purba. “Pembinaan Lembaga Pelatihan Kerja Swasta Di Kabupaten Batu Bara Oleh Ka-LPK Sumut”. Tour Abdimas Journal 2, no. 1 (January 31, 2023): 78–82. Accessed October 27, 2025. https://tourjurnal.akupuntour.com/index.php/tourabdimasjournal/article/view/51.