Wanichkul, K., Sutthisaksopon, P. and Kanchanakesorn, P. 2008. Effects of High Density Planting in 4 Training Systems on  Flowering and Fruit Set of Java Apple cv Thabthimchan in the Frist Two Bearing Years  . Thai Agricultural Research Journal. 26, 1 (Mar. 2008), 61. DOI:https://doi.org/10.14456/thaidoa-agres.2008.6.