Doctor TR, Manuel JJF, Rivera MP, Kebasen CA, Bulayungan FL. Water Quality of the Main Water Source of Village Ambassador, Tublay, Benguet using the Allium cepa Test. jpair [Internet]. 2010 Aug. 29 [cited 2025 May 2];5(1):97-111. Available from: https://www.philair.ph/index.php/jpair/article/view/126