Yayan Oktiawan. “IRRIGATION NETWORK PERFORMANCE INDEX ANALYSIS CASE STUDY OF BANDAR SAPAN KAYU MANANG IRRIGATION AREA, SOLOK REGENCY”. Indonesia Journal of Engineering and Education Technology (IJEET), vol. 1, no. 4, Dec. 2023, pp. 33-38, doi:10.61991/ijeet.v1i4.7.