please dont use resource from book "operating system concept 9th edition"

After reading each problem provide the answer using at least two sources such as an academic journal or a book chapter (not your text book). While providing answer, you must use information from your sources to answer the question. At the end of each answer, provide a conclusion. Put all your answers in one Word file and submit below.

Q. Most systems allow a program to allocate more memory to its address space during execution. Allocation of data in the heap segments of programs is and example of such allocated memory. What is required to support dynamic memor allocation in the following schemes?

a. Contiguous memory allocation

b. Pure segmentation

c. Pure paging

Explain each of the above schemes and provide sources to back your answers.