Dear Anonymous 41501:

I will assume, since you are writing to EN-Net, that you wish to use LQAS in a nutrition-related public health setting. For such purposes, there are several general manuals, some of which can be found at:

https://coregroup.org/wp-content/uploads/2020/03/Assessing-Community-Health-Programs_A-Participants-Manual-and-Workbook.pdf

https://pdf.usaid.gov/pdf_docs/PNACN935.pdf

https://www.lstmed.ac.uk/research/departments/international-public-health/monitoring-and-evaluation-technical-assistance-0

I am sure there are more which could be found with a Google search. I wish you good luck in your endeavors.