Compare and Contrast
Comparison of sources Both sources A and B are similar in that there is political repression by British Government. Source A says,"I think you know, when I was elected and appointed Chief Minister, I was told I had no office, no clerk, no thambi." 
This shows that the British Government didn't treat the local government as how they treated the British government, and treated them more lowly than the British government.
 Similarly, source B says,"Out on the streets, Chinese students ignored the government's official closure of their schools, and in a repeat of the previous year locked themselves into their classrooms, where they established their own revolutionary curriculum."
 This shows that the British government didn't respect the rights of the Chinese students, and thus the Chinese students had to protest against the government. The difference in both Sources A and B is the goals for both parties.
In source A, David Marshall aims for independence for Singapore and in Source B the chinese students hopes for their own revolutionary cirriculum.
Source A states that"Merdeka!People of Singapore!"
 This shows he wants the citizens of Singapore to oppose against the rule of the British and self-govern their own country.He wants to unite the citizens of Singapore to establish their own Independence.
 In contrast,Source B states "Chinese students ignored the Government's official closure of their schools , and in repeat of their previos year locked themselves into their classrooms, where they established their own revolutionary cirriculum."
 This shows that the chinese students strongly disagree with the present cirriculum and are revolting by forcibly confining themselves in the classrooms and creating their own cirriculum. Thus both Source A and B are different in terms of goals for Singapore.