H. Siregar

Organizations as a Container for Accommodating the Aspirations of Persons with Disabilities

Rizabuana Ismail, Hamdani Harahap, H. Siregar, 2022, Advances in Social Science, Education and Humanities Research.

Applying Climate Information for Supporting Farming System of Food Crop

E. Surmaini, R. Boer, H. Siregar, 2012 .