Wijesekera, NTS; Bhuvendralingam, S; DE Alwis, A; Butler, J; Smythe, R; Gunaratna, MH; Vattala, HDVS; Ranawana, S(Engineering Research Unit, Faculty of Engiennring, University of Moratuwa, 1996-05-31)
Jayasinghe, MTR; Attalage, RA; Kumari, MTGP; Withanage, ST; Wijesinghe, S(Engineering Research Unit, Faculty of Engiennring, University of Moratuwa, 1996-05-31)