Marvellino Gunawan, M., and A. F.V. Roy. “A FRAMEWORK FOR SUCCESSFUL PROVISION OF SUSTAINABLE INFRASTRUCTURE WITH A PPP SCHEME IN INDONESIA”. Jurnal Pensil : Pendidikan Teknik Sipil, Vol. 12, no. 1, Jan. 2023, pp. 33 -47, https://journal.unj.ac.id/unj/index.php/jpensil/article/view/28349.