Ngoenngam, L.; Pongtongkam, P.; Arananant, J.; Poeaim, S.; Poeaim, A. In vitro effect of plant growth regulators (PGRs) for callus induction and plant regeneration from suspension of Hamata (Stylosanthes hamata cv. Verano). Int. J. Agric. Tech. 2018, 14, 1515-1524.