共 50 条
[1]
[Anonymous], 2009, Survey Methodology
[2]
[Anonymous], 2006, AM J MED, DOI DOI 10.1016/J.AMJMED.2005.10.036
[3]
[Anonymous], 2015, APM SE WORKING GROUP
[4]
[Anonymous], 1986, The practice of social research
[5]
[Anonymous], 2000, CONSTRUCTING EFFECTI
[6]
[Anonymous], SAMPL SIZ CALC
[7]
[Anonymous], SAMPL SIZ CALC
[8]
Hands-on guide to questionnaire research - Selecting, designing, and developing your questionnaire
[J].
BMJ-BRITISH MEDICAL JOURNAL,
2004, 328 (7451)
:1312-1315
[10]
Chudoba B., MUCH TIME ARE RESPON