Alice Pung 
Our Australian Girl: Marly and the Goat (Book 3) [EPUB ebook] 
Marly and the Goat (Book 3)

It’s 1983 . . . and there’s excitement in Marly’s house. Her grandparents have arrived from Vietnam, and soon her mum will have a new baby. While Grandma tries to make Marly into a ‘young lady’, Grandpa digs up the back yard. Then he brings home Agnes, a goat! But the neighbours want Agnes taken away, and then things get dangerous. Will Marly be able to protect her grandpa and her pet? Follow Marly on her adventure in the third of four stories about a daring girl torn between two worlds.