Kānsammanā rư̄ang Kānchai Sapphayākō̜n kap Khwāmkhatyǣng thāng Sangkhom: Phonlawat khō̜ng Kānpennik kap Thānglư̄ak Kānphatthanā (1990 Čhulālongkō̜nmahāwitthayālai)