Reference this Research Paper (copy & paste below code):
A.Solairaju, N. Abdul Ali, S. Abdul Saleem (2018); Gracefulness of TP-Tree with Five Levels Obtained by Java Programming;
Int J Sci Res Publ 2(12) (ISSN: 2250-3153). http://www.ijsrp.org/research-paper-1212.php?rp=P12552