Charles, Mathew (1974). "Problems in the Reconstruction of Proto-Philippine Phonology and the Subgrouping of the Philippine Languages". Oceanic Linguistics. 13 (1/2): 457–509. doi:10.2307/3622751. JSTOR3622751.
Blust, Robert (1991). "The Greater Central Philippines hypothesis". Oceanic Linguistics. 30 (2): 73–129. doi:10.2307/3623084. JSTOR3623084.
Charles, Matthew (1974). "Problems in the reconstruction of Proto-Philippine phonology and the subgrouping of the Philippine languages". Oceanic Linguistics. 13 (1/2): 457–509. doi:10.2307/3622751. JSTOR3622751.
Dyen, Isidore (1965). "Language distribution and migration theory". Language. 32 (4): 611–626. doi:10.2307/411084. JSTOR411084.
jstor.org
Charles, Mathew (1974). "Problems in the Reconstruction of Proto-Philippine Phonology and the Subgrouping of the Philippine Languages". Oceanic Linguistics. 13 (1/2): 457–509. doi:10.2307/3622751. JSTOR3622751.
Blust, Robert (1991). "The Greater Central Philippines hypothesis". Oceanic Linguistics. 30 (2): 73–129. doi:10.2307/3623084. JSTOR3623084.
Charles, Matthew (1974). "Problems in the reconstruction of Proto-Philippine phonology and the subgrouping of the Philippine languages". Oceanic Linguistics. 13 (1/2): 457–509. doi:10.2307/3622751. JSTOR3622751.
Dyen, Isidore (1965). "Language distribution and migration theory". Language. 32 (4): 611–626. doi:10.2307/411084. JSTOR411084.