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3. Akurasi Metode IDW dan Kriging untuk Interpolasi Sebaran Sedimen Tersuspensi di Maros, Sulawesi Selatan
4. Governor of the Special Region of Yogyakarta, "The Regulation of the Governor of the Special Region of Yogyakarta No. 27 Year 2015 on Raw Water Supply for Rural Drinking Water," Governor of the Special Region of Yogyakarta, Yogyakarta, (2015).
5. A. Hairani and B. Barid, "Identification of Water Distribution Infrastructure in SPAMDes (in Indonesian)," in Webinar Abdimas, Yogyakarta, (2021).