Question Types (tipe tipe pertanyaan) EN ID

http://www.skillsyouneed.com/ips/question-types.html
http://thesecondprinciple.com/teaching-essentials/five-basic-types-questions/
http://ufal.mff.cuni.cz/~larasati/papers/99_Paper.pdf
http://www.aclweb.org/anthology/Y08-1026
http://www.academia.edu/5987356/Estimation_of_Question_Types_for_Indonesian_Question_Sentence
http://www.wordsmile.com/pengertian-rumus-contoh-kalimat-question-tags

tambahan:
http://help.surveymonkey.com/articles/en_US/kb/Available-question-types-and-formatting-options
http://www.qualtrics.com/university/researchsuite/basic-building/editing-questions/question-types-guide/