In the novel "The Outsiders" by S.E. Hinton, one example of onomatopoeia can be found in Chapter 1:
_"Bam! "_Sodapop says,_" "We're gonna see a movie now."_
In this sentence, the word _"bam!"_ is used to describe the sound of Sodapop's hand slamming the refrigerator door shut, emphasizing the abruptness and force of his action.