South African Bureau of Standards. Standard specification for softwood studs for timber frames in buildings. South African Bureau of Standards.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)South African Bureau of Standards. Standard Specification for Softwood Studs for Timber Frames in Buildings. South Africa: South African Bureau of Standards.
MLA -ийн эшлэл (9 дэх хэвлэлт)South African Bureau of Standards. Standard Specification for Softwood Studs for Timber Frames in Buildings. South African Bureau of Standards.
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