I have not tried it, but you have a library called Basic.bas with which you can try to load the program:
$ef is the LOAD ASCII code, $22 is the " ASCII code. Change program.bas by your program name.
Code:
#include <basic.bas>
EvalBASIC(chr($ef")+" "+chr($22)+"program.bas"+chr($22))
$ef is the LOAD ASCII code, $22 is the " ASCII code. Change program.bas by your program name.