Managing risks of precast concrete supply chain: a case studyJati Utomo Dwi Hatmoko, Mochamad Agung Wibowo, Marita Dewi Astuty, Desy Ratna Arthaningtyas and Moh Nur SholehMATEC Web Conf., 270 (2019) 05004DOI: https://doi.org/10.1051/matecconf/201927005004