Abdullah-Asri, M.-R.; Ahmad, A. .; Noor-Hassim, M.-F.; Ahmad, A. AMMONIUM-INDUCED CHANGES IN THE ASCORBIC ACID, CAROTENOID, PHENOLIC AND FLAVONOID CONTENT IN THE CULTURES OF Aglaonema Simplex: Ammonium Effects on Aglaonema Simplex. UMT JUR 2023, 5, 78-88.