https://www.amazon.com/gp/product/0803934386/ref=ox_sc_sfl_title_5?ie=UTF8&psc=1&smid=A9RXKI3W2Q2G4
https://www.amazon.com/gp/product/0803957408/ref=ox_sc_sfl_title_6?ie=UTF8&psc=1&smid=ADVR45CC30BBM

May you find this books as epub or pdf, please reply or pm me.
Thanks.