หนังสือที่แต่งโดย Hermans, Wilhelmus C. J 2 Results

No.TitlePublished
1Feasibility Study on Glycerine Refining in Thailand, from Appraisal Report No. 181969
2Feasibility of Sodium Silicate Manufacture in Thailand, from Appraisal Report No. 7, Part II: The Technical and Commercial Feasibility of Manufacture of Sodium Silicate1967