References
1. Basic surveying,raymond epaul(author),walterwhyte(author)
2. Bettess,f.1992.surveyingforarchaeologists.universityofdurhamdepartmentofarchaeol ogy.
3. Brinker,russell c. and minnick, roy.the surveying handbook. new york, new york van nostrandreinhold company.1987
4. Brower, c. and al., 1985.elements of topographic surveying,rome, italy.
5. c.brouwerand a.goffeau ,j.plusjé, m.heibloem irrigation water management: training manual no. 2 - elements of topographic surveying
6. Electronic vs. conventionalsurveys,r. dixon(author)
7. Fundamentalsofsurveying:sampleexamination,georgem.colepepls(author)
8. Harbin,andrewl.land surveyor reference manual. belmont, california professional publications, inc.1985
9. Http://squidstation.net/surveying.html
10. Http://www.ordnancesurvey.co.uk/benchmarks/; or http://www.bench marks.org.uk/search
11. Ninthannualseminarpresentedbytheoregondepartmentoftransportationgeometroni cs,oregon
12. Surveymanual - location & design division, virginia department of highways and transportation