Hidayat, Syamsul, and Muhammad Saleh. “Kemampuan Kerja Antara Pekerja Lulusan SMA Dan SMK Di Industri Manufaktur: Studi Komparasi”. Valid: Jurnal Ilmiah, vol. 17, no. 1, Feb. 2020, pp. 16-21, https://journal.stieamm.ac.id/valid/article/view/103.