Singapore Manufacturers' Association. Group E Committee. (1974). Building materials journal. Group E Committee, Singapore Manufacturers' Association.
Lua i Stíl Chicago (17ú heag.)Singapore Manufacturers' Association. Group E Committee. Building Materials Journal. Singapore: Group E Committee, Singapore Manufacturers' Association, 1974.
Lua MLA (8ú heag.)Singapore Manufacturers' Association. Group E Committee. Building Materials Journal. Group E Committee, Singapore Manufacturers' Association, 1974.
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