Rahdiana, Nana, Afif Hakim, and Sukarman. “Pengukuran Beban Kerja Mental Bagian Marketing PT. Pindo Deli Di Masa Covid-19 Dengan Metode NASA TLX”. Jurnal Sistem Teknik Industri 23, no. 1 (January 29, 2021): 9–21. Accessed August 11, 2025. https://idjpcr.usu.ac.id/jsti/article/view/4873.