The thesis is that both books have the same main theme, so in order to make the thesis statement stronger the author needs to add subtopics to be covered in the essay, like the migration caused by drug wars and child immigration, this could help strengthen the thesis statement and make it clearer and more precise.
Perubahan keadaan jirim juga perubahan fizikal. ... cair dan berubah bentuk daripada pepejal kepada cecair, air tersebut masih lagi mempunyai sifat air.