NGOSI, Reuben Kyalo; OMWENGA, Jane. Factors Contributing to Non-Productive Time in Geothermal Drilling in Kenya: A Case of Menengai Geothermal Project. American Scientific Research Journal for Engineering, Technology, and Sciences, Jordan, v. 14, n. 3, p. 16–26, 2015. Disponível em: https://asrjetsjournal.org/American_Scientific_Journal/article/view/1092. Acesso em: 19 dec. 2025.