How to distinguish Guangdong, North Guangdong, West Guangdong and East Guangdong? Please tell me.

Northern Guangdong: Shaoguan City: Wujiang District, Zhenjiang District, qujiang district Lechang City Nanxiong City Renhua County wengyuan county Xinfeng County Ruyuan Yao Autonomous County Qingyuan City: Qingxin County Lianshan Zhuang and Yao Autonomous County, Yangshan County, Lianzhou City, yingde city, Qingcheng District Liannan Yao Autonomous County Yuexi: Zhanjiang City: Mazhang District, xiashan district Potou District, Chikan District Lianjiang City Leizhou City Wuchuan City Suixi County xuwen county Maoming City: Maonan District. Zhaoqing City, Dianbai County, Xinyi City, Gaozhou City, Port Area: Sihui City, Gaoyao City, Dinghu District, Duanzhou District, Yangjiang City, Fengqi County, Deqing County, Huaiji County, Jiangcheng District, Yangdong County, Yangxi County, yangchun city City, Yunfu City, Yunan County, Yunan County, Xinxing County, luoding city City, Yuncheng City, Meizhou City, Meijiang District, xingning city Mei County, dapu county Fengshun County, Wuhua County, Pingyuan County, Shanwei City, Jiaoling County, Haifeng Heyuan City, Luhe County: Dongyuan County, Zijin County, Lianping County, peace county, Yuancheng District, Chaozhou City: Jieyang City, Fengxi District, Raoping County, Chaoan County, Xiangqiao District: Jiexi County, Jiedong County, Huilai County, Puning City, Rongcheng District