Aziz, A.R.A. and Baharom, M.B. and Abidin, E.Z.Z. and Firmansyah and Mohammed, S.E. and Nadhari, W.N.A.W. and Evelyn and Jaffry, M.N.M. (2019) Principal, design and characteristics of a free piston linear generator. Springer Singapore, pp. 127-144. ISBN 9789811501029; 9789811501012