Please help me this problem ! two-port circuits

[Huy_Hoang]

Find R1,R2,R3. h11 = 4, h12 = 0.8, h21 = -0.8 and h22 = 0.14S

I do not know how to find R1,R2,R3 because I do not know h22

Thank you guys!

[Josp2013]