Satim Hamid, Jon Edy, Muhammad Maulana, and Imam Mahdi Idzul Tsani, “Pengaruh Disiplin Kerja dan Pengalaman Kerja terhadap Produktivitas Kerja Karyawan PT. Grand Twins Engineering”, JUMBIKU, vol. 5, no. 3, pp. 68–81, Oct. 2025.