Bio-VegeGrout for soil strength enhancement: Effects of fermentation period on mechanical performance and microstructural characteristics - Wan Aisyah Fadilah Wae AbdulKadir; Rohayu Che Omar; Simon Gregory; Farah 'Atiqah Abdul Azam; Megan Barnett; Muhammad Afiq Mohamed Akbar; Nur 'Atikah Mahazir (Bioresource Technology Reports, 2026)