Gunawan, A., and A. Setyawan. “Analisis Produktivitas Hasil Pekerjaan Konstruksi Antara Kerja Normal Dan Kerja Lembur”. Surakarta Civil Engineering Review (SCER), vol. 2, no. 1, May 2022, pp. 49-61, https://ejurnal.unsa.ac.id/index.php/scer/article/view/12.