Omelhana Hysen Alfeetore and Abdussalam Salhin Mohamed, “Removal of Methylene Blue Dye from Aqueous Solution Using Marrubium vulgare Leaf Powder as a Low-Cost Biosorbent ”, jibas, vol. 2, no. 3, pp. 699–710, Sep. 2026, doi: 10.65421/jibas.v2i3.199.