Fernandez, G.J. Winston. “KAJIAN KARAKTERISTIK LEMPUNG BOBONARO DI PROVINSI NUSA TENGGARA TIMUR”. Jurnal Jalan Jembatan, vol. 24, no. 1, Nov. 2018, p. 17, https://binamarga.pu.go.id/jurnal/index.php/jurnaljalanjembatan/article/view/338.