“…However, the finding is different from the results of the study by Wirdianti, Komala, & Miarsyah (2019) According to them, there is a relationship between NI and students' pro-environmental behavior (PEB). Although the variables studied are related to the psychomotor domain, but PEB and UEC have links to environmental knowledge (Duan & Sheng, 2018;Zheng et al, 2018). When NI is related to PEB, it is certain that NI is also related to environmental knowledge, because knowledge can be a predictor of behavior (Ajzen, Joyce, Sheikh, & Cote, 2011).…”