2000-2001年5D班師生合照,最上排右四為趙善恆. Law Ting Pong Secondary School The 10th Anniversary Edition Year Book 2000-2001. 羅定邦中學: 46. 2001 [2022-12-17]. (原始内容存档于2022-12-17).
2000-2001年5D班師生合照,最上排右四為趙善恆. Law Ting Pong Secondary School The 10th Anniversary Edition Year Book 2000-2001. 羅定邦中學: 46. 2001 [2022-12-17]. (原始内容存档于2022-12-17).