LUSIANA, Evellin Dewi, MAHMUDI, Mohammad, MUSA, Muhammad, PRIMADHITA, Maria Alfonsa Okta, PUTRA, Syahrijal, SILALAHI, Jumpa Priodi, SUNADJI, Sunadji and BUWONO, Nanik Retno. Spatio-temporal analysis of the Brantas river water quality status by using principal component weighted index (PCWI). Ecological Questions. Online. 20 March 2023. Vol. 34, no. 3, pp. 1-16. [Accessed 18 July 2024]. DOI 10.12775/EQ.2023.028.