Original sentence: According to Peter Alexander and Anita Chan, China's export-oriented growth has been based on the labor of poorly paid and treated migrant workers, using a pass system similar to the one used in South Africa's apartheid, in which massive abuses of human rights have been observed
Edited sentence: "  Another author making similar comparison is Anita Chan, in which she furthers that China's household registration and temporary residence permit system has created a situation analogous to the passbook system in apartheid South Africa, which  were designed to regulate the supply of cheap labor.According to Peter Alexander, China's export-oriented growth has been based on the labor of poorly paid and treated migrant workers, using a pass system similar to the one used in South Africa's apartheid, in which massive abuses of human rights have been observed