Kuliah semster 5 : JKA

Jalan Kereta Api
http://www.indowebster.com/download/files/bantalan_beton
http://www.indowebster.com/download/files/bantalan
http://www.indowebster.com/download/files/rel_kul_jka
http://www.indowebster.com/download/files/struktur_bawah_jalan_rel_3_ok_ngajar
http://www.ziddu.com/download/​17131967/KULJKA.ppt.html